3v4l.org

run code in 300+ PHP versions simultaneously
<?php function f(){return (($cache[$url] = array( 'age' => time(),'html' => $hc->exec($url)->getStdOut()))['html']);}
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.24, 7.3.0 - 7.3.12
preferences:
67.54 ms | 402 KiB | 52 Q