DevWael

<?php
/*
Just copy the following code in functions.php file into your theme.
*/
add_action('after_setup_theme','window_mag_retina_script');
function window_mag_retina_script(){
	wp_enqueue_script( 'retina-js',  'https://cdnjs.cloudflare.com/ajax/libs/retina.js/2.1.3/retina.min.js', array( 'jquery' ), '1.0', true );
}

/**

DevWael

<?php
class Widget_Online_Support extends WP_Widget {

	/**
	 * Widget constructor.
	 */
	private $options;
	private $prefix;

	function __construct() {

DevWael

<?php
//Works only with wordpress plugin (WP ULike) url: https://wordpress.org/plugins/wp-ulike/
function prefix_get_posts_liked_by_current_user( $user_id = '' ) {
	if ( function_exists( 'wp_ulike' ) ) {
		global $wpdb;
		$result = array();
		if ( ! $user_id ) {
			$user_ID = get_current_user_id();
		}
		$likes = $wpdb->get_results( "

DevWael

<?php
add_filter('language_attributes', 'aprefix_add_opengraph_doctype');
function aprefix_add_opengraph_doctype( $output ) {
        return $output . ' xmlns:og="http://opengraphprotocol.org/schema/" xmlns:fb="http://www.facebook.com/2008/fbml"';
}
 
add_action( 'wp_head', 'prefix_insert_fb_in_head', 5 );
function prefix_insert_fb_in_head() {
    global $post;
    if ( !is_singular()) //if it is not a post or a page

DevWael

<?php

add_filter( 'booking_form_calculated_booking_cost', 'prefix_calculate_prices_based_on_cars_count', 10, 3 );
function prefix_calculate_prices_based_on_cars_count( $cost, $book_obj, $posted ) {
	$additional_cost = 198.6; //Change Cost Here
	if ( 'public-tour' == get_field( 'oks-tour-type', $book_obj->product->id ) ) {
		if ( $posted['wc_bookings_field_persons'] >= 1 && $posted['wc_bookings_field_persons'] <= 5 ) {
			return $cost + $additional_cost;
		} elseif ( $posted['wc_bookings_field_persons'] >= 6 && $posted['wc_bookings_field_persons'] <= 10 ) {
			return $cost + ( $additional_cost * 2 );

DevWael

<?php
/**
 * Remove Class Filter Without Access to Class Object
 *
 * In order to use the core WordPress remove_filter() on a filter added with the callback
 * to a class, you either have to have access to that class object, or it has to be a call
 * to a static method.  This method allows you to remove filters with a callback to a class
 * you don't have access to.
 *
 * Works with WordPress 1.2+ (4.7+ support added 9-19-2016)

DevWael

<?php 
function dev_log( $log_data ) {
	$log_file_name = "log";
	if ( ! file_exists( $log_file_name ) ) {
		mkdir( $log_file_name, 0777, true );
	}
	$log_file_data = $log_file_name . '/log_' . date( 'd-M-Y' ) . '.log';
	file_put_contents( $log_file_data, $log_data . "\n", FILE_APPEND );
}
//For wordpress developers: put this function into your plugin or theme (functions.php) and call it to test your data

DevWael

<?php
function prefix_phone_exist( $phone ) {
	$args       = array(
		'fields'     => 'ID',
		'meta_query' => array(
			array(
				'key'     => 'billing_phone', //Change this with the meta key that holds the phone number in user meta data
				'value'   => $phone,
				'compare' => '='
			)

DevWael

<?php

class Prefix_Disable_Posts {
	public function __construct() {
		global $pagenow;
		/* checks the request and redirects to the dashboard */
		add_action( 'init', array( __CLASS__, 'disallow_post_type_post' ) );
		/* removes Post Type `Post` related menus from the sidebar menu */
		add_action( 'admin_menu', array( __CLASS__, 'remove_post_type_post' ) );
		if ( ! is_admin() && ( $pagenow != 'wp-login.php' ) ) {

DevWael

<?php
function prefix_login_form( $login_only = 0 ) {
		global $user_ID, $user_level, $user_identity;
		$redirect = site_url();
		if ( $user_ID ) : ?>
			<?php if ( empty( $login_only ) ): ?>
                <div class="user-login">
                    <div class="author-avatar"><?php echo get_avatar( $user_ID, $size = '80' ); ?></div>
                    <p class="welcome-text"><?php esc_html_e( 'Welcome', 'window-mag' ); ?>
                        <strong><?php echo $user_identity ?></strong> .</p>