3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var1=time(); $var2=&$var1; var_dump($var2);
Output for 7.0.0 - 7.0.25, 7.1.0 - 7.1.20, 7.2.6 - 7.2.11
int(1510048069)
preferences:
69.56 ms | 402 KiB | 46 Q