Jonas Nordström windyjonas

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WordPress escaping functions

By: Jonas Nordström, @windyjonas
Date: 2013-04-16

esc_attr( $text );
Encodes the <, >, &, " and ' (less than, greater than, ampersand, double quote and single quote) characters. Will never double encode entities.
Example:

	<?php
	$names = [
	'Jonas',
	'Malin Degrenius',
	'Myran',
	'Sara Janmyr',
	'Annika Sjölander',
	'Jocke Sjölander',
	'Erika Wildoer',
	'Peter Wildoer',

	class Sanitize_Filename {

	public function __construct() {
	add_filter( 'wp_handle_upload_prefilter', [ $this, 'sanitize_decomposed_utf8_file' ] );
	}

	/**
	* Sanitize the filename in a file object
	*
	* @param array $file In file

	<?php
	$relations = array(
	'malin' => array( 'jonas', 'jack' ),
	'jonas' => array( 'malin', 'jack' ),
	'anna' => array( 'mats', 'filippa' ),
	'mats' => array( 'anna', 'filippa' ),
	'filippa' => array( 'anna', 'mats' ),
	'gussi' => array( 'stefan', 'emma' ),
	'stefan' => array( 'gussi' ),
	'emma' => array( 'gussi', 'ted' ),

	/**
	* Search users by first/last name in addition to the built-in nicename search
	* @param string $wp_user_query User query
	* @return string Modified user query
	*/
	function ws_user_search_by_name( $wp_user_query ) {
	if ( false === strpos( $wp_user_query->query_where, '@' ) && ! empty( $_GET['s'] ) ) {
	global $wpdb;

	$uids = array();

	CREATE TABLE `wp_posts_new` (
	`ID` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
	`post_author` bigint(20) unsigned NOT NULL DEFAULT '0',
	`post_date` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
	`post_date_gmt` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
	`post_content` longtext NOT NULL,
	`post_title` text NOT NULL,
	`post_excerpt` text NOT NULL,
	`post_status` varchar(20) NOT NULL DEFAULT 'publish',
	`comment_status` varchar(20) NOT NULL DEFAULT 'open',

	// Use Gists to store code you would like to remember later on
	console.log(window); // log the "window" object to the console

	fastcgi_intercept_errors on;

	if ($http_user_agent ~* (HTTrack\|HTMLParser\|discobot\|Exabot\|Casper\|kmccrew\|plaNETWORK\|RPT-HTTPClient)) {
	return 444;
	}

	if ($http_referer ~* (sex\|vigra\|viagra) ) {
	return 444;
	}

	###########################################
	# Constants, set and forget
	###########################################
	# temp storage for the wordpress tarball
	TMP_STORAGE=/home/USER/wptemp

	# web root for the wordpress site
	WWWROOT=/var/www

	# Privileged db use/pwd for creating database and granting rights