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Image resize - scaled correctly for thumbnails

<?

$thumb_file = "-thumb.jpg";

$image = _resize_image(
         'testing_crop.jpg', 
         $thumb_file, 
         125, 
         'auto'
      );
var_export($image);



// methods can be 'fit', 'stretch', or 'auto'.
function _resize_image($source_file, $dest_file, $width, $height, 
   $quality = 90, $method = "lkjlkjlk", $upscale = "yes")
{
   $ret = array();
   $image = false;
   switch(exif_imagetype($source_file)) {
      case IMAGETYPE_GIF:
         $image = imagecreatefromgif ($source_file);
         break;
      case IMAGETYPE_JPEG:
         $image = imagecreatefromjpeg($source_file);
         break;
      case IMAGETYPE_PNG:
         $image = imagecreatefrompng($source_file);
         break;
      case IMAGETYPE_BMP:
         // don't think PHP can create an image from a BMP
         // will need to find a third-party function for this if anyone cares about BMPs anymore
         break;
   }
   
   // file not a supported image type
   if ($image === false) {
      return false;
   }
   
   $imagesize = getimagesize($source_file);

   if ($imagesize === false) {
      return false;
   }

   $max_width    = PHP_INT_MAX;
   $max_height   = PHP_INT_MAX;
   $image_width  = $imagesize[0];
   $image_height = $imagesize[1];
   
   // invalid dimensions specified, don't bother attempting to resize
   // note: possible that only width or height is specified, don't need both
   if ($width <= 0 && $height <= 0) {
      copy($source_file, $dest_file);
      $ret['width']  = round($image_width);
      $ret['height'] = round($image_height);
      return $ret;
   }
   
   if ($width > 0) {
      $max_width = $width;
   }
   if ($height > 0) {
      $max_height = $height;
   }
   
   $dim = _get_resize_dimensions($image_width, $image_height, $max_width, $max_height, $method, $upscale);
   
   if ($dim['copy']) {
      copy($source_file, $dest_file);
      $ret['width']  = round($image_width);
      $ret['height'] = round($image_height);
   } else {
      $resized_image = imagecreatetruecolor($dim['dw'], $dim['dh']);
      $alpha_image = false;
      
      switch($imagesize[2]) {
         case IMAGETYPE_GIF:
            _set_transparency($resized_image, $image);
            break;
         case IMAGETYPE_PNG:
            imagealphablending($resized_image, false);
            imagesavealpha($resized_image, true);
            
            $alpha_image = imagecreatetruecolor($image_width, $image_height);
            imagealphablending($alpha_image, false);
            imagesavealpha($alpha_image, true);
            
            for ($x = 0; $x < $image_width; $x++) {
               for ($y = 0; $y < $image_height; $y++) {
                  $alpha = (imagecolorat($image, $x, $y) >> 24) & 0xFF;
                  $color = imagecolorallocatealpha($alpha_image, 0, 0, 0, $alpha);
                  imagesetpixel($alpha_image, $x, $y, $color);
               }
            }
            
            break;
      }
      
      imagegammacorrect($image, 2.2, 1.0);
      imagecopyresampled($resized_image, $image, 0, 0, $dim['sx'], $dim['sy'], $dim['dw'], $dim['dh'], $dim['sw'], $dim['sh']);
      imagegammacorrect($resized_image, 1.0, 2.2);
      
      imagedestroy($image);
      
      switch ($imagesize[2]) {
         case IMAGETYPE_GIF:
            imagegif ($resized_image, $dest_file);
            break;
         case IMAGETYPE_JPEG:
            imagejpeg($resized_image, $dest_file, $quality);
            break;
         case IMAGETYPE_PNG:
            $alpha_resized_image = imagecreatetruecolor($dim['dw'], $dim['dh']);
            imagealphablending($alpha_resized_image, false);
            imagesavealpha($alpha_resized_image, true);
            imagecopyresampled($alpha_resized_image, $alpha_image, 0, 0, $dim['sx'], $dim['sy'], $dim['dw'], $dim['dh'], $dim['sw'], $dim['sh']);
            
            for($x = 0; $x < $dim['dw']; $x++) {
               for($y = 0; $y < $dim['dh']; $y++) {
                  $alpha = (imagecolorat($alpha_resized_image, $x, $y) >> 24) & 0xFF;
                  $rgb = imagecolorat($resized_image, $x, $y);
                  $r = ($rgb >> 16) & 0xFF;
                  $g = ($rgb >> 8) & 0xFF;
                  $b = $rgb & 0xFF;
                  $color = imagecolorallocatealpha($resized_image, $r, $g, $b, $alpha);
                  imagesetpixel($resized_image, $x, $y, $color);
               }
            }
            
            imagedestroy($alpha_image);
            imagedestroy($alpha_resized_image);
            
            imagepng($resized_image, $dest_file);
            break;
      }
      
      imagedestroy($resized_image);
      
      $ret['width']  = $dim['dw'];
      $ret['height'] = $dim['dh'];
   }

   return $ret;
}

function _get_resize_dimensions($iw, $ih, $mw, $mh, $method = "fit", $upscale = "no") {
   $r = array();
   $r['copy'] = false;
   
   if ($method == "fill" && $mw < PHP_INT_MAX && $mh < PHP_INT_MAX) {
      if ($upscale == "yes" || ($iw > $mw && $ih > $mh)) {
         $ratio_width  = $iw / $mw;
         $ratio_height = $ih / $mh;

         $scale_by = $ratio_width <= $ratio_height ? $ratio_width : $ratio_height;

         $w = $iw  / $scale_by;
         $h = $ih / $scale_by;
         
         $r['sx'] = floor(($w - $mw) / 2 * $scale_by);
         $r['sy'] = floor(($h - $mh) / 2 * $scale_by);
         
         $r['dw'] = $mw;
         $r['dh'] = $mh;
         
         $r['sw'] = floor($mw * $scale_by);
         $r['sh'] = floor($mh * $scale_by);
         
         return $r;
      } else {
         $r['copy'] = true;
         return $r;
      }
   } else if ($method == "stretch" && $mw < PHP_INT_MAX && $mh < PHP_INT_MAX) {
      if ($upscale == "yes" || $iw > $mw || $ih > mh) {
         $r['sx'] = 0;
         $r['sy'] = 0;

         $r['dw'] = $mw;
         $r['dh'] = $mh;

         $r['sw'] = $iw;
         $r['sh'] = $ih;

         return $r;  
      } else {
         $r['copy'] = true;
         return $r;
      }
   } else {
      if ($upscale == "yes" || $iw > $mw || $ih > $mh) {
         $ratio_width  = $iw / $mw;
         $ratio_height = $ih / $mh;
         
         $scale_by = $ratio_width >= $ratio_height ? $ratio_width : $ratio_height;
         
         $r['sx'] = 0;
         $r['sy'] = 0;
         
         $r['dw'] = floor($iw / $scale_by);
         $r['dh'] = floor($ih / $scale_by);
         
         $r['sw'] = $iw;
         $r['sh'] = $ih;
         
         return $r;
      } else {
         $r['copy'] = true;
         return $r;
      }
   }
}

function _set_transparency($new_image, $image_source) 
{ 
   $transparencyIndex = imagecolortransparent($image_source);
   $transparencyColor = array('red' => 255, 'green' => 255, 'blue' => 255); 

   if ($transparencyIndex >= 0) { 
      $transparencyColor = imagecolorsforindex($image_source, $transparencyIndex);
   }

   $transparencyIndex = imagecolorallocate($new_image, $transparencyColor['red'], $transparencyColor['green'], $transparencyColor['blue']); 
   imagefill($new_image, 0, 0, $transparencyIndex); 
   imagecolortransparent($new_image, $transparencyIndex);
}
https://snipt.net/embed/225591c0b984439351e8b69194aff101/
/raw/225591c0b984439351e8b69194aff101/
225591c0b984439351e8b69194aff101
php
PHP
229
2019-08-21T12:32:42
True
False
False
/api/public/snipt/50402/
image-resize-scaled-correctly-for-thumbnails
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class="s2">&quot;-thumb.jpg&quot;</span><span class="p">;</span> </span><span id="L-4"><a name="L-4"></a> </span><span id="L-5"><a name="L-5"></a><span class="nv">$image</span> <span class="o">=</span> <span class="nx">_resize_image</span><span class="p">(</span> </span><span id="L-6"><a name="L-6"></a> <span class="s1">&#39;testing_crop.jpg&#39;</span><span class="p">,</span> </span><span id="L-7"><a name="L-7"></a> <span class="nv">$thumb_file</span><span class="p">,</span> </span><span id="L-8"><a name="L-8"></a> <span class="mi">125</span><span class="p">,</span> </span><span id="L-9"><a name="L-9"></a> <span class="s1">&#39;auto&#39;</span> </span><span id="L-10"><a name="L-10"></a> <span class="p">);</span> </span><span id="L-11"><a name="L-11"></a><span class="nb">var_export</span><span class="p">(</span><span class="nv">$image</span><span class="p">);</span> </span><span id="L-12"><a name="L-12"></a> </span><span id="L-13"><a name="L-13"></a> </span><span id="L-14"><a name="L-14"></a> </span><span id="L-15"><a name="L-15"></a><span class="c1">// methods can be &#39;fit&#39;, &#39;stretch&#39;, or &#39;auto&#39;.</span> </span><span id="L-16"><a name="L-16"></a><span class="k">function</span> <span class="nf">_resize_image</span><span class="p">(</span><span class="nv">$source_file</span><span class="p">,</span> <span class="nv">$dest_file</span><span class="p">,</span> <span class="nv">$width</span><span class="p">,</span> <span class="nv">$height</span><span class="p">,</span> </span><span id="L-17"><a name="L-17"></a> <span class="nv">$quality</span> <span class="o">=</span> <span class="mi">90</span><span class="p">,</span> <span class="nv">$method</span> <span class="o">=</span> <span class="s2">&quot;lkjlkjlk&quot;</span><span class="p">,</span> <span class="nv">$upscale</span> <span class="o">=</span> <span class="s2">&quot;yes&quot;</span><span class="p">)</span> </span><span id="L-18"><a name="L-18"></a><span class="p">{</span> </span><span id="L-19"><a name="L-19"></a> <span class="nv">$ret</span> <span class="o">=</span> <span class="k">array</span><span class="p">();</span> </span><span id="L-20"><a name="L-20"></a> <span class="nv">$image</span> <span class="o">=</span> <span class="k">false</span><span class="p">;</span> </span><span id="L-21"><a name="L-21"></a> <span class="k">switch</span><span class="p">(</span><span class="nb">exif_imagetype</span><span class="p">(</span><span class="nv">$source_file</span><span class="p">))</span> <span class="p">{</span> </span><span id="L-22"><a name="L-22"></a> <span class="k">case</span> <span class="nx">IMAGETYPE_GIF</span><span class="o">:</span> </span><span id="L-23"><a name="L-23"></a> <span class="nv">$image</span> <span class="o">=</span> <span class="nb">imagecreatefromgif</span> <span class="p">(</span><span class="nv">$source_file</span><span class="p">);</span> </span><span id="L-24"><a name="L-24"></a> <span class="k">break</span><span class="p">;</span> </span><span id="L-25"><a name="L-25"></a> <span class="k">case</span> <span class="nx">IMAGETYPE_JPEG</span><span class="o">:</span> </span><span id="L-26"><a name="L-26"></a> <span class="nv">$image</span> <span class="o">=</span> <span class="nb">imagecreatefromjpeg</span><span class="p">(</span><span class="nv">$source_file</span><span class="p">);</span> </span><span id="L-27"><a name="L-27"></a> <span class="k">break</span><span class="p">;</span> </span><span id="L-28"><a name="L-28"></a> <span class="k">case</span> <span class="nx">IMAGETYPE_PNG</span><span class="o">:</span> </span><span id="L-29"><a name="L-29"></a> <span class="nv">$image</span> <span class="o">=</span> <span class="nb">imagecreatefrompng</span><span class="p">(</span><span class="nv">$source_file</span><span class="p">);</span> </span><span id="L-30"><a name="L-30"></a> <span class="k">break</span><span class="p">;</span> </span><span id="L-31"><a name="L-31"></a> <span class="k">case</span> <span class="nx">IMAGETYPE_BMP</span><span class="o">:</span> </span><span id="L-32"><a name="L-32"></a> <span class="c1">// don&#39;t think PHP can create an image from a BMP</span> </span><span id="L-33"><a name="L-33"></a> <span class="c1">// will need to find a third-party function for this if anyone cares about BMPs anymore</span> </span><span id="L-34"><a name="L-34"></a> <span class="k">break</span><span class="p">;</span> </span><span id="L-35"><a name="L-35"></a> <span class="p">}</span> </span><span id="L-36"><a name="L-36"></a> </span><span id="L-37"><a name="L-37"></a> <span class="c1">// file not a supported image type</span> </span><span id="L-38"><a name="L-38"></a> <span class="k">if</span> <span class="p">(</span><span class="nv">$image</span> <span class="o">===</span> <span class="k">false</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-39"><a name="L-39"></a> <span class="k">return</span> <span class="k">false</span><span class="p">;</span> </span><span id="L-40"><a name="L-40"></a> <span class="p">}</span> </span><span id="L-41"><a name="L-41"></a> </span><span id="L-42"><a name="L-42"></a> <span class="nv">$imagesize</span> <span class="o">=</span> <span class="nb">getimagesize</span><span class="p">(</span><span class="nv">$source_file</span><span class="p">);</span> </span><span id="L-43"><a name="L-43"></a> </span><span id="L-44"><a name="L-44"></a> <span class="k">if</span> <span class="p">(</span><span class="nv">$imagesize</span> <span class="o">===</span> <span class="k">false</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-45"><a name="L-45"></a> <span class="k">return</span> <span class="k">false</span><span class="p">;</span> </span><span id="L-46"><a name="L-46"></a> <span class="p">}</span> </span><span id="L-47"><a name="L-47"></a> </span><span id="L-48"><a name="L-48"></a> <span class="nv">$max_width</span> <span class="o">=</span> <span class="nx">PHP_INT_MAX</span><span class="p">;</span> </span><span id="L-49"><a name="L-49"></a> <span class="nv">$max_height</span> <span class="o">=</span> <span class="nx">PHP_INT_MAX</span><span class="p">;</span> </span><span id="L-50"><a name="L-50"></a> <span class="nv">$image_width</span> <span class="o">=</span> <span class="nv">$imagesize</span><span class="p">[</span><span class="mi">0</span><span class="p">];</span> </span><span id="L-51"><a name="L-51"></a> <span class="nv">$image_height</span> <span class="o">=</span> <span class="nv">$imagesize</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span> </span><span id="L-52"><a name="L-52"></a> </span><span id="L-53"><a name="L-53"></a> <span class="c1">// invalid dimensions specified, don&#39;t bother attempting to resize</span> </span><span id="L-54"><a name="L-54"></a> <span class="c1">// note: possible that only width or height is specified, don&#39;t need both</span> </span><span id="L-55"><a name="L-55"></a> <span class="k">if</span> <span class="p">(</span><span class="nv">$width</span> <span class="o">&lt;=</span> <span class="mi">0</span> <span class="o">&amp;&amp;</span> <span class="nv">$height</span> <span class="o">&lt;=</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-56"><a name="L-56"></a> <span class="nb">copy</span><span class="p">(</span><span class="nv">$source_file</span><span class="p">,</span> <span class="nv">$dest_file</span><span class="p">);</span> </span><span id="L-57"><a name="L-57"></a> <span class="nv">$ret</span><span class="p">[</span><span class="s1">&#39;width&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nb">round</span><span class="p">(</span><span class="nv">$image_width</span><span class="p">);</span> </span><span id="L-58"><a name="L-58"></a> <span class="nv">$ret</span><span class="p">[</span><span class="s1">&#39;height&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nb">round</span><span class="p">(</span><span class="nv">$image_height</span><span class="p">);</span> </span><span id="L-59"><a name="L-59"></a> <span class="k">return</span> <span class="nv">$ret</span><span class="p">;</span> </span><span id="L-60"><a name="L-60"></a> <span class="p">}</span> </span><span id="L-61"><a name="L-61"></a> </span><span id="L-62"><a name="L-62"></a> <span class="k">if</span> <span class="p">(</span><span class="nv">$width</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-63"><a name="L-63"></a> <span class="nv">$max_width</span> <span class="o">=</span> <span class="nv">$width</span><span class="p">;</span> </span><span id="L-64"><a name="L-64"></a> <span class="p">}</span> </span><span id="L-65"><a name="L-65"></a> <span class="k">if</span> <span class="p">(</span><span class="nv">$height</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-66"><a name="L-66"></a> <span class="nv">$max_height</span> <span class="o">=</span> <span class="nv">$height</span><span class="p">;</span> </span><span id="L-67"><a name="L-67"></a> <span class="p">}</span> </span><span id="L-68"><a name="L-68"></a> </span><span id="L-69"><a name="L-69"></a> <span class="nv">$dim</span> <span class="o">=</span> <span class="nx">_get_resize_dimensions</span><span class="p">(</span><span class="nv">$image_width</span><span class="p">,</span> <span class="nv">$image_height</span><span class="p">,</span> <span class="nv">$max_width</span><span class="p">,</span> <span class="nv">$max_height</span><span class="p">,</span> <span class="nv">$method</span><span class="p">,</span> <span class="nv">$upscale</span><span class="p">);</span> </span><span id="L-70"><a name="L-70"></a> </span><span id="L-71"><a name="L-71"></a> <span class="k">if</span> <span class="p">(</span><span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;copy&#39;</span><span class="p">])</span> <span class="p">{</span> </span><span id="L-72"><a name="L-72"></a> <span class="nb">copy</span><span class="p">(</span><span class="nv">$source_file</span><span class="p">,</span> <span class="nv">$dest_file</span><span class="p">);</span> </span><span id="L-73"><a name="L-73"></a> <span class="nv">$ret</span><span class="p">[</span><span class="s1">&#39;width&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nb">round</span><span class="p">(</span><span class="nv">$image_width</span><span class="p">);</span> </span><span id="L-74"><a name="L-74"></a> <span class="nv">$ret</span><span class="p">[</span><span class="s1">&#39;height&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nb">round</span><span class="p">(</span><span class="nv">$image_height</span><span class="p">);</span> </span><span id="L-75"><a name="L-75"></a> <span class="p">}</span> <span class="k">else</span> <span class="p">{</span> </span><span id="L-76"><a name="L-76"></a> <span class="nv">$resized_image</span> <span class="o">=</span> <span class="nb">imagecreatetruecolor</span><span class="p">(</span><span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;dw&#39;</span><span class="p">],</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;dh&#39;</span><span class="p">]);</span> </span><span id="L-77"><a name="L-77"></a> <span class="nv">$alpha_image</span> <span class="o">=</span> <span class="k">false</span><span class="p">;</span> </span><span id="L-78"><a name="L-78"></a> </span><span id="L-79"><a name="L-79"></a> <span class="k">switch</span><span class="p">(</span><span class="nv">$imagesize</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span> <span class="p">{</span> </span><span id="L-80"><a name="L-80"></a> <span class="k">case</span> <span class="nx">IMAGETYPE_GIF</span><span class="o">:</span> </span><span id="L-81"><a name="L-81"></a> <span class="nx">_set_transparency</span><span class="p">(</span><span class="nv">$resized_image</span><span class="p">,</span> <span class="nv">$image</span><span class="p">);</span> </span><span id="L-82"><a name="L-82"></a> <span class="k">break</span><span class="p">;</span> </span><span id="L-83"><a name="L-83"></a> <span class="k">case</span> <span class="nx">IMAGETYPE_PNG</span><span class="o">:</span> </span><span id="L-84"><a name="L-84"></a> <span class="nb">imagealphablending</span><span class="p">(</span><span class="nv">$resized_image</span><span class="p">,</span> <span class="k">false</span><span class="p">);</span> </span><span id="L-85"><a name="L-85"></a> <span class="nb">imagesavealpha</span><span class="p">(</span><span class="nv">$resized_image</span><span class="p">,</span> <span class="k">true</span><span class="p">);</span> </span><span id="L-86"><a name="L-86"></a> </span><span id="L-87"><a name="L-87"></a> <span class="nv">$alpha_image</span> <span class="o">=</span> <span class="nb">imagecreatetruecolor</span><span class="p">(</span><span class="nv">$image_width</span><span class="p">,</span> <span class="nv">$image_height</span><span class="p">);</span> </span><span id="L-88"><a name="L-88"></a> <span class="nb">imagealphablending</span><span class="p">(</span><span class="nv">$alpha_image</span><span class="p">,</span> <span class="k">false</span><span class="p">);</span> </span><span id="L-89"><a name="L-89"></a> <span class="nb">imagesavealpha</span><span class="p">(</span><span class="nv">$alpha_image</span><span class="p">,</span> <span class="k">true</span><span class="p">);</span> </span><span id="L-90"><a name="L-90"></a> </span><span id="L-91"><a name="L-91"></a> <span class="k">for</span> <span class="p">(</span><span class="nv">$x</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="nv">$x</span> <span class="o">&lt;</span> <span class="nv">$image_width</span><span class="p">;</span> <span class="nv">$x</span><span class="o">++</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-92"><a name="L-92"></a> <span class="k">for</span> <span class="p">(</span><span class="nv">$y</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="nv">$y</span> <span class="o">&lt;</span> <span class="nv">$image_height</span><span class="p">;</span> <span class="nv">$y</span><span class="o">++</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-93"><a name="L-93"></a> <span class="nv">$alpha</span> <span class="o">=</span> <span class="p">(</span><span class="nb">imagecolorat</span><span class="p">(</span><span class="nv">$image</span><span class="p">,</span> <span class="nv">$x</span><span class="p">,</span> <span class="nv">$y</span><span class="p">)</span> <span class="o">&gt;&gt;</span> <span class="mi">24</span><span class="p">)</span> <span class="o">&amp;</span> <span class="mh">0xFF</span><span class="p">;</span> </span><span id="L-94"><a name="L-94"></a> <span class="nv">$color</span> <span class="o">=</span> <span class="nb">imagecolorallocatealpha</span><span class="p">(</span><span class="nv">$alpha_image</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nv">$alpha</span><span class="p">);</span> </span><span id="L-95"><a name="L-95"></a> <span class="nb">imagesetpixel</span><span class="p">(</span><span class="nv">$alpha_image</span><span class="p">,</span> <span class="nv">$x</span><span class="p">,</span> <span class="nv">$y</span><span class="p">,</span> <span class="nv">$color</span><span class="p">);</span> </span><span id="L-96"><a name="L-96"></a> <span class="p">}</span> </span><span id="L-97"><a name="L-97"></a> <span class="p">}</span> </span><span id="L-98"><a name="L-98"></a> </span><span id="L-99"><a name="L-99"></a> <span class="k">break</span><span class="p">;</span> </span><span id="L-100"><a name="L-100"></a> <span class="p">}</span> </span><span id="L-101"><a name="L-101"></a> </span><span id="L-102"><a name="L-102"></a> <span class="nb">imagegammacorrect</span><span class="p">(</span><span class="nv">$image</span><span class="p">,</span> <span class="mf">2.2</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">);</span> </span><span id="L-103"><a name="L-103"></a> <span class="nb">imagecopyresampled</span><span class="p">(</span><span class="nv">$resized_image</span><span class="p">,</span> <span class="nv">$image</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;sx&#39;</span><span class="p">],</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;sy&#39;</span><span class="p">],</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;dw&#39;</span><span class="p">],</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;dh&#39;</span><span class="p">],</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;sw&#39;</span><span class="p">],</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;sh&#39;</span><span class="p">]);</span> </span><span id="L-104"><a name="L-104"></a> <span class="nb">imagegammacorrect</span><span class="p">(</span><span class="nv">$resized_image</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">,</span> <span class="mf">2.2</span><span class="p">);</span> </span><span id="L-105"><a name="L-105"></a> </span><span id="L-106"><a name="L-106"></a> <span class="nb">imagedestroy</span><span class="p">(</span><span class="nv">$image</span><span class="p">);</span> </span><span id="L-107"><a name="L-107"></a> </span><span id="L-108"><a name="L-108"></a> <span class="k">switch</span> <span class="p">(</span><span class="nv">$imagesize</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span> <span class="p">{</span> </span><span id="L-109"><a name="L-109"></a> <span class="k">case</span> <span class="nx">IMAGETYPE_GIF</span><span class="o">:</span> </span><span id="L-110"><a name="L-110"></a> <span class="nb">imagegif</span> <span class="p">(</span><span class="nv">$resized_image</span><span class="p">,</span> <span class="nv">$dest_file</span><span class="p">);</span> </span><span id="L-111"><a name="L-111"></a> <span class="k">break</span><span class="p">;</span> </span><span id="L-112"><a name="L-112"></a> <span class="k">case</span> <span class="nx">IMAGETYPE_JPEG</span><span class="o">:</span> </span><span id="L-113"><a name="L-113"></a> <span class="nb">imagejpeg</span><span class="p">(</span><span class="nv">$resized_image</span><span class="p">,</span> <span class="nv">$dest_file</span><span class="p">,</span> <span class="nv">$quality</span><span class="p">);</span> </span><span id="L-114"><a name="L-114"></a> <span class="k">break</span><span class="p">;</span> </span><span id="L-115"><a name="L-115"></a> <span class="k">case</span> <span class="nx">IMAGETYPE_PNG</span><span class="o">:</span> </span><span id="L-116"><a name="L-116"></a> <span class="nv">$alpha_resized_image</span> <span class="o">=</span> <span class="nb">imagecreatetruecolor</span><span class="p">(</span><span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;dw&#39;</span><span class="p">],</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;dh&#39;</span><span class="p">]);</span> </span><span id="L-117"><a name="L-117"></a> <span class="nb">imagealphablending</span><span class="p">(</span><span class="nv">$alpha_resized_image</span><span class="p">,</span> <span class="k">false</span><span class="p">);</span> </span><span id="L-118"><a name="L-118"></a> <span class="nb">imagesavealpha</span><span class="p">(</span><span class="nv">$alpha_resized_image</span><span class="p">,</span> <span class="k">true</span><span class="p">);</span> </span><span id="L-119"><a name="L-119"></a> <span class="nb">imagecopyresampled</span><span class="p">(</span><span class="nv">$alpha_resized_image</span><span class="p">,</span> <span class="nv">$alpha_image</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;sx&#39;</span><span class="p">],</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;sy&#39;</span><span class="p">],</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;dw&#39;</span><span class="p">],</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;dh&#39;</span><span class="p">],</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;sw&#39;</span><span class="p">],</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;sh&#39;</span><span class="p">]);</span> </span><span id="L-120"><a name="L-120"></a> </span><span id="L-121"><a name="L-121"></a> <span class="k">for</span><span class="p">(</span><span class="nv">$x</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="nv">$x</span> <span class="o">&lt;</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;dw&#39;</span><span class="p">];</span> <span class="nv">$x</span><span class="o">++</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-122"><a name="L-122"></a> <span class="k">for</span><span class="p">(</span><span class="nv">$y</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="nv">$y</span> <span class="o">&lt;</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;dh&#39;</span><span class="p">];</span> <span class="nv">$y</span><span class="o">++</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-123"><a name="L-123"></a> <span class="nv">$alpha</span> <span class="o">=</span> <span class="p">(</span><span class="nb">imagecolorat</span><span class="p">(</span><span class="nv">$alpha_resized_image</span><span class="p">,</span> <span class="nv">$x</span><span class="p">,</span> <span class="nv">$y</span><span class="p">)</span> <span class="o">&gt;&gt;</span> <span class="mi">24</span><span class="p">)</span> <span class="o">&amp;</span> <span class="mh">0xFF</span><span class="p">;</span> </span><span id="L-124"><a name="L-124"></a> <span class="nv">$rgb</span> <span class="o">=</span> <span class="nb">imagecolorat</span><span class="p">(</span><span class="nv">$resized_image</span><span class="p">,</span> <span class="nv">$x</span><span class="p">,</span> <span class="nv">$y</span><span class="p">);</span> </span><span id="L-125"><a name="L-125"></a> <span class="nv">$r</span> <span class="o">=</span> <span class="p">(</span><span class="nv">$rgb</span> <span class="o">&gt;&gt;</span> <span class="mi">16</span><span class="p">)</span> <span class="o">&amp;</span> <span class="mh">0xFF</span><span class="p">;</span> </span><span id="L-126"><a name="L-126"></a> <span class="nv">$g</span> <span class="o">=</span> <span class="p">(</span><span class="nv">$rgb</span> <span class="o">&gt;&gt;</span> <span class="mi">8</span><span class="p">)</span> <span class="o">&amp;</span> <span class="mh">0xFF</span><span class="p">;</span> </span><span id="L-127"><a name="L-127"></a> <span class="nv">$b</span> <span class="o">=</span> <span class="nv">$rgb</span> <span class="o">&amp;</span> <span class="mh">0xFF</span><span class="p">;</span> </span><span id="L-128"><a name="L-128"></a> <span class="nv">$color</span> <span class="o">=</span> <span class="nb">imagecolorallocatealpha</span><span class="p">(</span><span class="nv">$resized_image</span><span class="p">,</span> <span class="nv">$r</span><span class="p">,</span> <span class="nv">$g</span><span class="p">,</span> <span class="nv">$b</span><span class="p">,</span> <span class="nv">$alpha</span><span class="p">);</span> </span><span id="L-129"><a name="L-129"></a> <span class="nb">imagesetpixel</span><span class="p">(</span><span class="nv">$resized_image</span><span class="p">,</span> <span class="nv">$x</span><span class="p">,</span> <span class="nv">$y</span><span class="p">,</span> <span class="nv">$color</span><span class="p">);</span> </span><span id="L-130"><a name="L-130"></a> <span class="p">}</span> </span><span id="L-131"><a name="L-131"></a> <span class="p">}</span> </span><span id="L-132"><a name="L-132"></a> </span><span id="L-133"><a name="L-133"></a> <span class="nb">imagedestroy</span><span class="p">(</span><span class="nv">$alpha_image</span><span class="p">);</span> </span><span id="L-134"><a name="L-134"></a> <span class="nb">imagedestroy</span><span class="p">(</span><span class="nv">$alpha_resized_image</span><span class="p">);</span> </span><span id="L-135"><a name="L-135"></a> </span><span id="L-136"><a name="L-136"></a> <span class="nb">imagepng</span><span class="p">(</span><span class="nv">$resized_image</span><span class="p">,</span> <span class="nv">$dest_file</span><span class="p">);</span> </span><span id="L-137"><a name="L-137"></a> <span class="k">break</span><span class="p">;</span> </span><span id="L-138"><a name="L-138"></a> <span class="p">}</span> </span><span id="L-139"><a name="L-139"></a> </span><span id="L-140"><a name="L-140"></a> <span class="nb">imagedestroy</span><span class="p">(</span><span class="nv">$resized_image</span><span class="p">);</span> </span><span id="L-141"><a name="L-141"></a> </span><span id="L-142"><a name="L-142"></a> <span class="nv">$ret</span><span class="p">[</span><span class="s1">&#39;width&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;dw&#39;</span><span class="p">];</span> </span><span id="L-143"><a name="L-143"></a> <span class="nv">$ret</span><span class="p">[</span><span class="s1">&#39;height&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nv">$dim</span><span class="p">[</span><span class="s1">&#39;dh&#39;</span><span class="p">];</span> </span><span id="L-144"><a name="L-144"></a> <span class="p">}</span> </span><span id="L-145"><a name="L-145"></a> </span><span id="L-146"><a name="L-146"></a> <span class="k">return</span> <span class="nv">$ret</span><span class="p">;</span> </span><span id="L-147"><a name="L-147"></a><span class="p">}</span> </span><span id="L-148"><a name="L-148"></a> </span><span id="L-149"><a name="L-149"></a><span class="k">function</span> <span class="nf">_get_resize_dimensions</span><span class="p">(</span><span class="nv">$iw</span><span class="p">,</span> <span class="nv">$ih</span><span class="p">,</span> <span class="nv">$mw</span><span class="p">,</span> <span class="nv">$mh</span><span class="p">,</span> <span class="nv">$method</span> <span class="o">=</span> <span class="s2">&quot;fit&quot;</span><span class="p">,</span> <span class="nv">$upscale</span> <span class="o">=</span> <span class="s2">&quot;no&quot;</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-150"><a name="L-150"></a> <span class="nv">$r</span> <span class="o">=</span> <span class="k">array</span><span class="p">();</span> </span><span id="L-151"><a name="L-151"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;copy&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="k">false</span><span class="p">;</span> </span><span id="L-152"><a name="L-152"></a> </span><span id="L-153"><a name="L-153"></a> <span class="k">if</span> <span class="p">(</span><span class="nv">$method</span> <span class="o">==</span> <span class="s2">&quot;fill&quot;</span> <span class="o">&amp;&amp;</span> <span class="nv">$mw</span> <span class="o">&lt;</span> <span class="nx">PHP_INT_MAX</span> <span class="o">&amp;&amp;</span> <span class="nv">$mh</span> <span class="o">&lt;</span> <span class="nx">PHP_INT_MAX</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-154"><a name="L-154"></a> <span class="k">if</span> <span class="p">(</span><span class="nv">$upscale</span> <span class="o">==</span> <span class="s2">&quot;yes&quot;</span> <span class="o">||</span> <span class="p">(</span><span class="nv">$iw</span> <span class="o">&gt;</span> <span class="nv">$mw</span> <span class="o">&amp;&amp;</span> <span class="nv">$ih</span> <span class="o">&gt;</span> <span class="nv">$mh</span><span class="p">))</span> <span class="p">{</span> </span><span id="L-155"><a name="L-155"></a> <span class="nv">$ratio_width</span> <span class="o">=</span> <span class="nv">$iw</span> <span class="o">/</span> <span class="nv">$mw</span><span class="p">;</span> </span><span id="L-156"><a name="L-156"></a> <span class="nv">$ratio_height</span> <span class="o">=</span> <span class="nv">$ih</span> <span class="o">/</span> <span class="nv">$mh</span><span class="p">;</span> </span><span id="L-157"><a name="L-157"></a> </span><span id="L-158"><a name="L-158"></a> <span class="nv">$scale_by</span> <span class="o">=</span> <span class="nv">$ratio_width</span> <span class="o">&lt;=</span> <span class="nv">$ratio_height</span> <span class="o">?</span> <span class="nv">$ratio_width</span> <span class="o">:</span> <span class="nv">$ratio_height</span><span class="p">;</span> </span><span id="L-159"><a name="L-159"></a> </span><span id="L-160"><a name="L-160"></a> <span class="nv">$w</span> <span class="o">=</span> <span class="nv">$iw</span> <span class="o">/</span> <span class="nv">$scale_by</span><span class="p">;</span> </span><span id="L-161"><a name="L-161"></a> <span class="nv">$h</span> <span class="o">=</span> <span class="nv">$ih</span> <span class="o">/</span> <span class="nv">$scale_by</span><span class="p">;</span> </span><span id="L-162"><a name="L-162"></a> </span><span id="L-163"><a name="L-163"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;sx&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nb">floor</span><span class="p">((</span><span class="nv">$w</span> <span class="o">-</span> <span class="nv">$mw</span><span class="p">)</span> <span class="o">/</span> <span class="mi">2</span> <span class="o">*</span> <span class="nv">$scale_by</span><span class="p">);</span> </span><span id="L-164"><a name="L-164"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;sy&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nb">floor</span><span class="p">((</span><span class="nv">$h</span> <span class="o">-</span> <span class="nv">$mh</span><span class="p">)</span> <span class="o">/</span> <span class="mi">2</span> <span class="o">*</span> <span class="nv">$scale_by</span><span class="p">);</span> </span><span id="L-165"><a name="L-165"></a> </span><span id="L-166"><a name="L-166"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;dw&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nv">$mw</span><span class="p">;</span> </span><span id="L-167"><a name="L-167"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;dh&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nv">$mh</span><span class="p">;</span> </span><span id="L-168"><a name="L-168"></a> </span><span id="L-169"><a name="L-169"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;sw&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nb">floor</span><span class="p">(</span><span class="nv">$mw</span> <span class="o">*</span> <span class="nv">$scale_by</span><span class="p">);</span> </span><span id="L-170"><a name="L-170"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;sh&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nb">floor</span><span class="p">(</span><span class="nv">$mh</span> <span class="o">*</span> <span class="nv">$scale_by</span><span class="p">);</span> </span><span id="L-171"><a name="L-171"></a> </span><span id="L-172"><a name="L-172"></a> <span class="k">return</span> <span class="nv">$r</span><span class="p">;</span> </span><span id="L-173"><a name="L-173"></a> <span class="p">}</span> <span class="k">else</span> <span class="p">{</span> </span><span id="L-174"><a name="L-174"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;copy&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="k">true</span><span class="p">;</span> </span><span id="L-175"><a name="L-175"></a> <span class="k">return</span> <span class="nv">$r</span><span class="p">;</span> </span><span id="L-176"><a name="L-176"></a> <span class="p">}</span> </span><span id="L-177"><a name="L-177"></a> <span class="p">}</span> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nv">$method</span> <span class="o">==</span> <span class="s2">&quot;stretch&quot;</span> <span class="o">&amp;&amp;</span> <span class="nv">$mw</span> <span class="o">&lt;</span> <span class="nx">PHP_INT_MAX</span> <span class="o">&amp;&amp;</span> <span class="nv">$mh</span> <span class="o">&lt;</span> <span class="nx">PHP_INT_MAX</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-178"><a name="L-178"></a> <span class="k">if</span> <span class="p">(</span><span class="nv">$upscale</span> <span class="o">==</span> <span class="s2">&quot;yes&quot;</span> <span class="o">||</span> <span class="nv">$iw</span> <span class="o">&gt;</span> <span class="nv">$mw</span> <span class="o">||</span> <span class="nv">$ih</span> <span class="o">&gt;</span> <span class="nx">mh</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-179"><a name="L-179"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;sx&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> </span><span id="L-180"><a name="L-180"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;sy&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> </span><span id="L-181"><a name="L-181"></a> </span><span id="L-182"><a name="L-182"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;dw&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nv">$mw</span><span class="p">;</span> </span><span id="L-183"><a name="L-183"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;dh&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nv">$mh</span><span class="p">;</span> </span><span id="L-184"><a name="L-184"></a> </span><span id="L-185"><a name="L-185"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;sw&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nv">$iw</span><span class="p">;</span> </span><span id="L-186"><a name="L-186"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;sh&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nv">$ih</span><span class="p">;</span> </span><span id="L-187"><a name="L-187"></a> </span><span id="L-188"><a name="L-188"></a> <span class="k">return</span> <span class="nv">$r</span><span class="p">;</span> </span><span id="L-189"><a name="L-189"></a> <span class="p">}</span> <span class="k">else</span> <span class="p">{</span> </span><span id="L-190"><a name="L-190"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;copy&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="k">true</span><span class="p">;</span> </span><span id="L-191"><a name="L-191"></a> <span class="k">return</span> <span class="nv">$r</span><span class="p">;</span> </span><span id="L-192"><a name="L-192"></a> <span class="p">}</span> </span><span id="L-193"><a name="L-193"></a> <span class="p">}</span> <span class="k">else</span> <span class="p">{</span> </span><span id="L-194"><a name="L-194"></a> <span class="k">if</span> <span class="p">(</span><span class="nv">$upscale</span> <span class="o">==</span> <span class="s2">&quot;yes&quot;</span> <span class="o">||</span> <span class="nv">$iw</span> <span class="o">&gt;</span> <span class="nv">$mw</span> <span class="o">||</span> <span class="nv">$ih</span> <span class="o">&gt;</span> <span class="nv">$mh</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-195"><a name="L-195"></a> <span class="nv">$ratio_width</span> <span class="o">=</span> <span class="nv">$iw</span> <span class="o">/</span> <span class="nv">$mw</span><span class="p">;</span> </span><span id="L-196"><a name="L-196"></a> <span class="nv">$ratio_height</span> <span class="o">=</span> <span class="nv">$ih</span> <span class="o">/</span> <span class="nv">$mh</span><span class="p">;</span> </span><span id="L-197"><a name="L-197"></a> </span><span id="L-198"><a name="L-198"></a> <span class="nv">$scale_by</span> <span class="o">=</span> <span class="nv">$ratio_width</span> <span class="o">&gt;=</span> <span class="nv">$ratio_height</span> <span class="o">?</span> <span class="nv">$ratio_width</span> <span class="o">:</span> <span class="nv">$ratio_height</span><span class="p">;</span> </span><span id="L-199"><a name="L-199"></a> </span><span id="L-200"><a name="L-200"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;sx&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> </span><span id="L-201"><a name="L-201"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;sy&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> </span><span id="L-202"><a name="L-202"></a> </span><span id="L-203"><a name="L-203"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;dw&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nb">floor</span><span class="p">(</span><span class="nv">$iw</span> <span class="o">/</span> <span class="nv">$scale_by</span><span class="p">);</span> </span><span id="L-204"><a name="L-204"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;dh&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nb">floor</span><span class="p">(</span><span class="nv">$ih</span> <span class="o">/</span> <span class="nv">$scale_by</span><span class="p">);</span> </span><span id="L-205"><a name="L-205"></a> </span><span id="L-206"><a name="L-206"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;sw&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nv">$iw</span><span class="p">;</span> </span><span id="L-207"><a name="L-207"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;sh&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nv">$ih</span><span class="p">;</span> </span><span id="L-208"><a name="L-208"></a> </span><span id="L-209"><a name="L-209"></a> <span class="k">return</span> <span class="nv">$r</span><span class="p">;</span> </span><span id="L-210"><a name="L-210"></a> <span class="p">}</span> <span class="k">else</span> <span class="p">{</span> </span><span id="L-211"><a name="L-211"></a> <span class="nv">$r</span><span class="p">[</span><span class="s1">&#39;copy&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="k">true</span><span class="p">;</span> </span><span id="L-212"><a name="L-212"></a> <span class="k">return</span> <span class="nv">$r</span><span class="p">;</span> </span><span id="L-213"><a name="L-213"></a> <span class="p">}</span> </span><span id="L-214"><a name="L-214"></a> <span class="p">}</span> </span><span id="L-215"><a name="L-215"></a><span class="p">}</span> </span><span id="L-216"><a name="L-216"></a> </span><span id="L-217"><a name="L-217"></a><span class="k">function</span> <span class="nf">_set_transparency</span><span class="p">(</span><span class="nv">$new_image</span><span class="p">,</span> <span class="nv">$image_source</span><span class="p">)</span> </span><span id="L-218"><a name="L-218"></a><span class="p">{</span> </span><span id="L-219"><a name="L-219"></a> <span class="nv">$transparencyIndex</span> <span class="o">=</span> <span class="nb">imagecolortransparent</span><span class="p">(</span><span class="nv">$image_source</span><span class="p">);</span> </span><span id="L-220"><a name="L-220"></a> <span class="nv">$transparencyColor</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span><span class="s1">&#39;red&#39;</span> <span class="o">=&gt;</span> <span class="mi">255</span><span class="p">,</span> <span class="s1">&#39;green&#39;</span> <span class="o">=&gt;</span> <span class="mi">255</span><span class="p">,</span> <span class="s1">&#39;blue&#39;</span> <span class="o">=&gt;</span> <span class="mi">255</span><span class="p">);</span> </span><span id="L-221"><a name="L-221"></a> </span><span id="L-222"><a name="L-222"></a> <span class="k">if</span> <span class="p">(</span><span class="nv">$transparencyIndex</span> <span class="o">&gt;=</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-223"><a name="L-223"></a> <span class="nv">$transparencyColor</span> <span class="o">=</span> <span class="nb">imagecolorsforindex</span><span class="p">(</span><span class="nv">$image_source</span><span class="p">,</span> <span class="nv">$transparencyIndex</span><span class="p">);</span> </span><span id="L-224"><a name="L-224"></a> <span class="p">}</span> </span><span id="L-225"><a name="L-225"></a> </span><span id="L-226"><a name="L-226"></a> <span class="nv">$transparencyIndex</span> <span class="o">=</span> <span class="nb">imagecolorallocate</span><span class="p">(</span><span class="nv">$new_image</span><span class="p">,</span> <span class="nv">$transparencyColor</span><span class="p">[</span><span class="s1">&#39;red&#39;</span><span class="p">],</span> <span class="nv">$transparencyColor</span><span class="p">[</span><span class="s1">&#39;green&#39;</span><span class="p">],</span> <span class="nv">$transparencyColor</span><span class="p">[</span><span class="s1">&#39;blue&#39;</span><span class="p">]);</span> </span><span id="L-227"><a name="L-227"></a> <span class="nb">imagefill</span><span class="p">(</span><span class="nv">$new_image</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nv">$transparencyIndex</span><span class="p">);</span> </span><span id="L-228"><a name="L-228"></a> <span class="nb">imagecolortransparent</span><span class="p">(</span><span class="nv">$new_image</span><span class="p">,</span> <span class="nv">$transparencyIndex</span><span class="p">);</span> </span><span id="L-229"><a name="L-229"></a><span class="p">}</span> </span></pre></div> </td></tr></table>
image, php, proportionally, resize, thumbnails