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<?php |
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|
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namespace Pixelavo; |
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|
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/** |
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* Exit if accessed directly |
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* */ |
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if (!defined('ABSPATH')) { |
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exit; |
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} |
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|
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class AddPixel{ |
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|
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private static $_instance = null; |
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|
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/** |
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* Instance |
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* |
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* Initializes a singleton instance |
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* |
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* @return self self class |
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*/ |
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static function instance() { |
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if ( is_null( self::$_instance ) ) { |
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self::$_instance = new self(); |
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} |
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return self::$_instance; |
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} |
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|
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private function __construct() { |
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add_action('wp_head', [ $this, 'add_pixels']); |
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} |
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|
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/** |
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* Add pixel to the site. |
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* |
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* @return void |
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*/ |
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function add_pixels() { |
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$pixels = pixelavo_get_pixel_list(apply_filters('pixelavo_pixels_limit', 1)); |
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|
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$pixelInitCode = ''; |
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$pixelNoScriptCode = ''; |
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$advanced_matching = apply_filters('pixelavo_advanced_matching', []); |
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$advanced_matching_hashed = apply_filters('pixelavo_advanced_matching_hashed', []); |
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|
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if(!empty($pixels)) { |
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|
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/** |
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* Loop for pixel init & noscript code. |
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*/ |
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foreach ($pixels as $pixel) { |
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if($pixel['active'] == 'on' && pixelavo_check_pixel_page($pixel)) { |
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if(!empty($advanced_matching)) { |
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$pixelInitCode .= "fbq('init', {$pixel['pixel_id']}, $advanced_matching);" . "\n"; |
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$pixelNoScriptCode .= "<img height='1' width='1' style='display:none' src='https://www.facebook.com/tr?id={$pixel['pixel_id']}&ev=PageView&noscript=1&ud[em]={$advanced_matching_hashed['em']}&ud[fn]={$advanced_matching_hashed['fn']}&ud[ln]={$advanced_matching_hashed['ln']}&ud[ph]={$advanced_matching_hashed['ph']}&ud[ct]={$advanced_matching_hashed['ct']}&ud[st]={$advanced_matching_hashed['st']}&ud[zp]={$advanced_matching_hashed['zp']}&ud[country]={$advanced_matching_hashed['country']}'/>" . "\n"; |
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} else { |
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$pixelInitCode .= "fbq('init', {$pixel['pixel_id']});" . "\n"; |
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$pixelNoScriptCode .= "<img height='1' width='1' style='display:none' src='https://www.facebook.com/tr?id={$pixel['pixel_id']}&ev=PageView&noscript=1'/>" . "\n"; |
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} |
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} |
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} |
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|
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/** |
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* Print facebook pixel code to the browser. |
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*/ |
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if(pixelavo_pixel_status() && !pixelavo_check_exclude_roles()) { |
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ob_start(); |
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echo "<script> |
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!function(f,b,e,v,n,t,s) |
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{if(f.fbq)return;n=f.fbq=function(){n.callMethod? |
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n.callMethod.apply(n,arguments):n.queue.push(arguments)}; |
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if(!f._fbq)f._fbq=n;n.push=n;n.loaded=!0;n.version='2.0'; |
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n.queue=[];t=b.createElement(e);t.async=!0; |
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t.src=v;s=b.getElementsByTagName(e)[0]; |
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s.parentNode.insertBefore(t,s)}(window, document,'script', |
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'https://connect.facebook.net/en_US/fbevents.js'); |
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{$pixelInitCode} |
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fbq('track', 'PageView'); |
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</script> |
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<noscript> |
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{$pixelNoScriptCode} |
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</noscript>"; |
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echo ob_get_clean(); |
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} |
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|
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} |
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} |
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} |
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|
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/** |
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* Initialize AddPixel Class |
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*/ |
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AddPixel::instance(); |
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|
