<?php
function my_excerpt_length($text){
	return 10;
}
add_filter('excerpt_length', 'my_excerpt_length');

function new_excerpt_more($more) {
	return '...';
}
add_filter('excerpt_more', 'new_excerpt_more');
?>

php

1

Modify the_excerpt() output

<?php
function my_excerpt_length($text){
	return 10;
}
add_filter('excerpt_length', 'my_excerpt_length');

function new_excerpt_more($more) {
	return '...';
}
add_filter('excerpt_more', 'new_excerpt_more');
?>

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• php, 
• wordpress

<?php $number_of_posts = $wp_query->post_count; ?>

php

1

Number of posts in a loop

<?php $number_of_posts = $wp_query->post_count; ?>

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• wordpress

<?php echo $wp_query->found_posts; ?>

php

1

Returns the number of results

<?php echo $wp_query->found_posts; ?>

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• count, 
• number, 
• results, 
• wordpress

<?php echo get_search_query(); ?>

php

1

Returns the searched keyword

<?php echo get_search_query(); ?>

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• keyword, 
• search, 
• search query, 
• wordpress

<?php
function page_template_class() {
	$page_template_class = '';
	
	if (is_page_template('kinderen.php')) {
		$page_template_class = 'kinderen';
	}
	
	if (!empty($page_template_class)) {
		echo ' class="'.$page_template_class.'"';
	}
	else {
		return false;
	}
}
?>

php

1

Return a class is a certain page template is used

<?php
function page_template_class() {
	$page_template_class = '';
	
	if (is_page_template('kinderen.php')) {
		$page_template_class = 'kinderen';
	}
	
	if (!empty($page_template_class)) {
		echo ' class="'.$page_template_class.'"';
	}
	else {
		return false;
	}
}
?>

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• class, 
• page template, 
• wordpress

<?php
$page_output = wp_list_pages('echo=0&title_li=&sort_column=menu_order&depth=1&include='.$page_ids);
$page_output = preg_replace('@\<li([^>]*)>\<a([^>]*)>(.*?)\<\/a>@i', '<li$1><a$2><span>$3</span></a>', $page_output);
echo $page_output;
?>

php

1

Replace the output of wp_list_pages();

<?php
$page_output = wp_list_pages('echo=0&title_li=&sort_column=menu_order&depth=1&include='.$page_ids);
$page_output = preg_replace('@\<li([^>]*)>\<a([^>]*)>(.*?)\<\/a>@i', '<li$1><a$2><span>$3</span></a>', $page_output);
echo $page_output;
?>

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• output, 
• wordpress, 
• wp_list_pages

<?php
function the_nth_sentence($sentence_num = 1) {
	if ($sentence_num == 0) {
		return false;
	}
	if ($sentence_num >= 1) {
		$sentence_num = $sentence_num-1;
	}
	$content = get_the_content('',FALSE,'');
	$content = apply_filters('the_content', $content);
	$content = strip_tags($content);
	$pos = strpos($content, '.');
	for($i=1; $i<=$sentence_num; $i++) {
		$pos = strpos($content, '.', $pos+1);
	}
	echo '<p>' . substr($content,0,$pos+1) . '</p>';
}
?>

php

1

Get the nth sentence from the post (beta)

<?php
function the_nth_sentence($sentence_num = 1) {
	if ($sentence_num == 0) {
		return false;
	}
	if ($sentence_num >= 1) {
		$sentence_num = $sentence_num-1;
	}
	$content = get_the_content('',FALSE,'');
	$content = apply_filters('the_content', $content);
	$content = strip_tags($content);
	$pos = strpos($content, '.');
	for($i=1; $i<=$sentence_num; $i++) {
		$pos = strpos($content, '.', $pos+1);
	}
	echo '<p>' . substr($content,0,$pos+1) . '</p>';
}
?>

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• nth, 
• php, 
• sentence, 
• wordpress

<?php
function the_first_sentence() {
	$content = get_the_content('',FALSE,'');
	$content = apply_filters('the_content', $content);
	$content = strip_tags($content);
	$pos = strpos($content, '.');
	echo '<p>' . substr($content,0,$pos+1) . '</p>';
}
?>

php

1

Get the first sentence of the post

<?php
function the_first_sentence() {
	$content = get_the_content('',FALSE,'');
	$content = apply_filters('the_content', $content);
	$content = strip_tags($content);
	$pos = strpos($content, '.');
	echo '<p>' . substr($content,0,$pos+1) . '</p>';
}
?>

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• first, 
• sentence, 
• wordpress

<?php
function exclude_categories(array $categories, $sign = TRUE) {
	$exclude_cat = new WP_Query('showposts=0');
	if ($sign == TRUE):
		$sign = "-";
	else:
		$sign = "";
	endif;

	foreach((get_categories()) as $cat):
		if(in_array($cat->cat_name, $categories)):
			$exclude_id .= $sign . $cat->cat_ID .',';
		endif;
	endforeach;
	$exclude_id = substr($exclude_id, 0, -1);
	return $exclude_id;
}
?>

php

1

Exclude array of categories

<?php
function exclude_categories(array $categories, $sign = TRUE) {
	$exclude_cat = new WP_Query('showposts=0');
	if ($sign == TRUE):
		$sign = "-";
	else:
		$sign = "";
	endif;

	foreach((get_categories()) as $cat):
		if(in_array($cat->cat_name, $categories)):
			$exclude_id .= $sign . $cat->cat_ID .',';
		endif;
	endforeach;
	$exclude_id = substr($exclude_id, 0, -1);
	return $exclude_id;
}
?>

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• categories, 
• category, 
• exclude, 
• wordpress

<?php $sticky = new WP_Query(array("post__in" =>get_option("sticky_posts"))); ?>

php

1

Display only "sticky posts"

<?php $sticky = new WP_Query(array("post__in" =>get_option("sticky_posts"))); ?>

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• post, 
• sticky, 
• wordpress

<?php echo get_permalink(get_page_id('articles')); ?>

php

1

Get permalink to a page by id

<?php echo get_permalink(get_page_id('articles')); ?>

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• get, 
• id, 
• page, 
• permalink, 
• wordpress

<?php
echo $post->post_name;
// the $post array also contains other useful/interesting data
?>

php

1

Get the slug of the current post/page

<?php
echo $post->post_name;
// the $post array also contains other useful/interesting data
?>

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• page, 
• post, 
• slug, 
• wordpress

<?php
function the_summary() {
	$content = get_the_content('',FALSE,'');
	$content = apply_filters('the_content', $content);
	$pos = strpos($content, '</p>');
	echo substr($content,0,$pos+4);
}
?>

php

1

Alternative replacement for the_content(); - it show a first <p> from a post (place in functions.php)

<?php
function the_summary() {
	$content = get_the_content('',FALSE,'');
	$content = apply_filters('the_content', $content);
	$pos = strpos($content, '</p>');
	echo substr($content,0,$pos+4);
}
?>

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• summary, 
• wordpress

<?php
get_cat_id('categoryName');
?>

php

1

Get category ID

<?php
get_cat_id('categoryName');
?>

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• get_cat_id, 
• wordpress

<?php
foreach(get_the_category() as $category) {
  $post_category_id = $category->cat_ID;
}
?>

php

1

Get $post_category_id

<?php
foreach(get_the_category() as $category) {
  $post_category_id = $category->cat_ID;
}
?>

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• post_category_id, 
• wordpress

<?php
function getTopParentPostTitle($myid){
	$mypage = get_page($myid);

	if ($mypage->post_parent == 0){
		return $mypage->post_title;
	}
	else{
		return getTopParentPostName($mypage->post_parent);
	}

}
?>

php

1

getTopParentPostTitle

<?php
function getTopParentPostTitle($myid){
	$mypage = get_page($myid);

	if ($mypage->post_parent == 0){
		return $mypage->post_title;
	}
	else{
		return getTopParentPostName($mypage->post_parent);
	}

}
?>

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• gettopparentposttitle, 
• wordpress

<?php
function getTopParentPostName($myid){
	$mypage = get_page($myid);

	if ($mypage->post_parent == 0){
		return $mypage->post_name;
	}
	else{
		return getTopParentPostName($mypage->post_parent);
	}

}
?>

php

1

getTopParentPostName

<?php
function getTopParentPostName($myid){
	$mypage = get_page($myid);

	if ($mypage->post_parent == 0){
		return $mypage->post_name;
	}
	else{
		return getTopParentPostName($mypage->post_parent);
	}

}
?>

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• gettopparentpostname, 
• wordpress

/* YUI CSS RESET */
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,textarea,p,blockquote,th,td { margin:0; padding:0; }
table { border-collapse:collapse; border-spacing:0; }
fieldset,img { border:0; }
address,caption,cite,code,dfn,em,strong,th,var { font-style:normal; font-weight:normal; }
ol,ul {	list-style:none; }
caption,th { text-align:left; }
h1,h2,h3,h4,h5,h6 { font-size:100%; font-weight:normal; }
q:before,q:after { content:''; }
abbr,acronym { border:0; }

css

1

Yahoo CSS Reset

/* YUI CSS RESET */
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,textarea,p,blockquote,th,td { margin:0; padding:0; }
table { border-collapse:collapse; border-spacing:0; }
fieldset,img { border:0; }
address,caption,cite,code,dfn,em,strong,th,var { font-style:normal; font-weight:normal; }
ol,ul {	list-style:none; }
caption,th { text-align:left; }
h1,h2,h3,h4,h5,h6 { font-size:100%; font-weight:normal; }
q:before,q:after { content:''; }
abbr,acronym { border:0; }

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• css, 
• reset

<?php
function get_page_id($page_name){
	global $wpdb;
	$page_name = $wpdb->get_var("SELECT ID FROM $wpdb->posts WHERE post_name = '".$page_name."' AND post_status = 'publish' AND post_type = 'page'");
	return $page_name;
}
?>

php

1

get_page_id

<?php
function get_page_id($page_name){
	global $wpdb;
	$page_name = $wpdb->get_var("SELECT ID FROM $wpdb->posts WHERE post_name = '".$page_name."' AND post_status = 'publish' AND post_type = 'page'");
	return $page_name;
}
?>

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• get_page_id, 
• wordpress