3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arrOpenGraphTags = array( 'og:type' => 'article', 'og:image' => 'http://placekitten.com/324x234'); if (defined('OG_SITE_NAME')) { $arrOpenGraphTags =+ array('og:site_name' => OG_SITE_NAME); } var_dump($arrOpenGraphTags);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(2) { ["og:type"]=> string(7) "article" ["og:image"]=> string(30) "http://placekitten.com/324x234" }
preferences:
238.28 ms | 406 KiB | 375 Q