cyberwani

<?php 
/**
 * Return posts with maximum age of one year.
 *
 * Usage:
 *   add_filter( 'posts_where', 'wp_query_filter_max_one_year_old' );
 *   $my_query = new WP_Query( array( ... ) );
 *   remove_filter( 'posts_where', 'wp_query_filter_max_one_year_old' );
 * 
 * @param  string $where

cyberwani

<?php
$age_filter = function ( $where = '' ) use ( $options ) {
	$where .= " AND post_date > '" . date( 'Y-m-d', strtotime( '-' . $options[ 'max_post_age' ] ) ) . "'";
	return $where;
};

add_filter( 'posts_where', $age_filter );
$query = new WP_Query( $args );
remove_filter( 'posts_where', $age_filter );

cyberwani

<?php 
/**
 * Return posts with maximum age of one year.
 *
 * Usage:
 *   add_filter( 'posts_where', 'wp_query_filter_max_one_year_old' );
 *   $my_query = new WP_Query( array( ... ) );
 *   remove_filter( 'posts_where', 'wp_query_filter_max_one_year_old' );
 * 
 * @param  string $where

cyberwani

<?php
/**
 * My Plugin
 * 
 * @uses add_filter() for 'the_content': make love not content
 * @uses add_filter() for 'get_the_excerpt': clearly announce all excerpts
 */
class my_plugin
{
	function __construct() {

cyberwani

<?php
register_activation_hook( __FILE__, 'add_last_activity_for_all_users' );
function add_last_activity_for_all_users() {
	global $wpdb;
	
	$sql = $wpdb->prepare( "
		SELECT
			u.ID
		FROM
			$wpdb->users AS u

cyberwani

<?php
/**
 * Return array containing all capabilities that user has access to.
 * If he is an admin, the list will contain all available capability IDs.
 * 
 * @param $user_id integer
 * @return array
 */
function dtpr_get_all_user_capabilities( $user_id ) {
	global $wpdb;

cyberwani

jQuery(function($) {
	// configure
	var comment_input = $( '#commentform textarea' );
	var submit_button = $( '#commentform .form-submit' );
	var comment_limit_chars = 1000;
	// stop editing here
	
	// display how many characters are left
	$( '<div class="comment_limit_info"><span>' + comment_limit_chars + '</span> characters left</div>' ).insertAfter( comment_input );
	

cyberwani

<?php
// Alternative 1
function my_postbox_fun() {
	# code...
}
postbox( 'My Awesome Postbox', 'my_postbox_fun' );

// Alternative 2
class my_example_class
{	

cyberwani

ericteubert: ~/Sites/wordpress-single 
➜ ack widget_text
wp-admin/includes/schema.php
307:	'widget_text' => array(),

wp-content/plugins/ikonum/class/class.custom-field-template.php
101:			add_filter('widget_text', 'do_shortcode');

wp-includes/default-widgets.php
371:		$widget_ops = array('classname' => 'widget_text', 'description' => __('Arbitrary text or HTML'));

cyberwani

<?php
class content_parser {	
	
	public function __construct() {
		// apply parser to all posts
		add_filter( 'the_content', array( __CLASS__, 'parse' ) );
	}
	
	public static function parse( $text ) {
		global $post;