3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); define('great','my'); $great='fantastic'; $my='my value'; echo "This is ${great }<br/>\n";//output:my value echo "This is ${ great}<br/>\n";//output:my value echo "This is ${ great }<br/>\n";//output:my value echo "This is ${great}<br/>\n";//output:fantastic

preferences:
49.05 ms | 402 KiB | 5 Q