add_inline_js($code); } } /** * Validate URLs, make relative URLs absolute * * @access public * @param string $url * @return string */ public static function make_url($url) { if ( // The first check incorrectly fails for URLs with special chars. !filter_var($url , FILTER_VALIDATE_URL) && substr($url, 0, 4) !== 'http' ) { return get_site_url() . $url ; } else { return $url; } } /** * Product ID for Dynamic Ads on Facebook can be SKU or wc_post_id_123 * This function should be used to get retailer_id based on a WC_Product * from WooCommerce * * @access public * @param WC_Product $woo_product * @return string */ public static function get_fb_retailer_id($woo_product) { $woo_id = $woo_product->get_id(); // Call $woo_product->get_id() instead of ->id to account for Variable // products, which have their own variant_ids. return $woo_product->get_sku() ? $woo_product->get_sku() . '_' . $woo_id : self::FB_RETAILER_ID_PREFIX . $woo_id; } /** * Return categories for products/pixel * * @access public * @param String $id * @return Array */ public static function get_product_categories($wpid) { $category_path = wp_get_post_terms( $wpid, 'product_cat', array('fields' => 'all')); $content_category = array_values( array_map( function($item) { return $item->name; }, $category_path)); $content_category_slice = array_slice($content_category, -1); $categories = empty($content_category) ? '""' : implode(', ', $content_category); return array( 'name' => array_pop($content_category_slice), 'categories' => $categories ); } /** * Compatibility method for legacy retailer IDs prior to 1.1 * Returns a variety of IDs to match on for Pixel fires. * * @access public * @param WC_Product $woo_product * @return array */ public static function get_fb_content_ids($woo_product) { return array_values(array_unique(array_filter(array( $woo_product->get_sku(), self::FB_RETAILER_ID_PREFIX . $woo_product->get_id(), self::get_fb_retailer_id($woo_product) )))); } /** * Clean up strings for FB Graph POSTing. * This function should will: * 1. Replace newlines chars/nbsp with a real space * 2. strip_tags() * 3. trim() * * @access public * @param String string * @return string */ public static function clean_string($string) { $string = str_replace(array('&%3B', '&'), '&', $string); $string = str_replace(array("\r", "\n", " ", "\t"), ' ', $string); // Strip shortcodes via regex but keep inner content $string = preg_replace("~(?:\[/?)[^/\]]+/?\]~s", '', $string); $string = wp_strip_all_tags($string, true); // true == remove line breaks return trim($string); } /** * Returns flat array of woo IDs for variable products, or * an array with a single woo ID for simple products. * * @access public * @param WC_Product $woo_product * @return array */ public static function get_product_array($woo_product) { $result = array(); if ($woo_product->get_type() === 'variable') { foreach ($woo_product->get_children() as $item_id) { array_push($result, $item_id); } return $result; } else { return array($woo_product->get_id()); } } /** * Returns true if WooCommerce plugin found. * * @access public * @return bool */ public static function isWoocommerceIntegration() { return class_exists('WooCommerce'); } /** * Returns integration dependent name. * * @access public * @return string */ public static function getIntegrationName() { if (WC_Facebookcommerce_Utils::isWoocommerceIntegration()) { return 'WooCommerce'; } else { return 'WordPress'; } } /** * Returns user info for the current WP user. * * @access public * @param boolean $use_pii * @return array */ public static function get_user_info($use_pii) { $current_user = wp_get_current_user(); if (0 === $current_user->ID || $use_pii === false) { // User not logged in or admin chose not to send PII. return array(); } else { return array_filter( array( // Keys documented in // https://developers.facebook.com/docs/facebook-pixel/pixel-with-ads/ // /conversion-tracking#advanced_match 'em' => $current_user->user_email, 'fn' => $current_user->user_firstname, 'ln' => $current_user->user_lastname ), function ($value) { return $value !== null && $value !== ''; }); } } } endif;