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Adding Category to the body_class() class

add_filter('body_class','add_category_to_single');
function add_category_to_single($classes, $class) {
	if (is_single() ) {
		global $post;
		foreach((get_the_category($post->ID)) as $category) {
			echo $category->cat_name . ' ';
			// add category slug to the $classes array
			$classes[] = 'category-'.$category->slug;
		}
	}
	// return the $classes array
	return $classes;
}
https://snipt.net/embed/61dc9872fae85030dedee16ba0351951/
/raw/61dc9872fae85030dedee16ba0351951/
61dc9872fae85030dedee16ba0351951
php
PHP
13
2019-06-26T12:36:35
True
False
False
/api/public/snipt/46189/
adding-category-to-the-body_class-class
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><a href="#L-1"> 1</a> <a href="#L-2"> 2</a> <a href="#L-3"> 3</a> <a href="#L-4"> 4</a> <a href="#L-5"> 5</a> <a href="#L-6"> 6</a> <a href="#L-7"> 7</a> <a href="#L-8"> 8</a> <a href="#L-9"> 9</a> <a href="#L-10">10</a> <a href="#L-11">11</a> <a href="#L-12">12</a> <a href="#L-13">13</a></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span id="L-1"><a name="L-1"></a><span class="x">add_filter(&#39;body_class&#39;,&#39;add_category_to_single&#39;);</span> </span><span id="L-2"><a name="L-2"></a><span class="x">function add_category_to_single($classes, $class) {</span> </span><span id="L-3"><a name="L-3"></a><span class="x"> if (is_single() ) {</span> </span><span id="L-4"><a name="L-4"></a><span class="x"> global $post;</span> </span><span id="L-5"><a name="L-5"></a><span class="x"> foreach((get_the_category($post-&gt;ID)) as $category) {</span> </span><span id="L-6"><a name="L-6"></a><span class="x"> echo $category-&gt;cat_name . &#39; &#39;;</span> </span><span id="L-7"><a name="L-7"></a><span class="x"> // add category slug to the $classes array</span> </span><span id="L-8"><a name="L-8"></a><span class="x"> $classes[] = &#39;category-&#39;.$category-&gt;slug;</span> </span><span id="L-9"><a name="L-9"></a><span class="x"> }</span> </span><span id="L-10"><a name="L-10"></a><span class="x"> }</span> </span><span id="L-11"><a name="L-11"></a><span class="x"> // return the $classes array</span> </span><span id="L-12"><a name="L-12"></a><span class="x"> return $classes;</span> </span><span id="L-13"><a name="L-13"></a><span class="x">}</span> </span></pre></div> </td></tr></table>
category, filter, wordpress