3v4l.org

run code in 300+ PHP versions simultaneously
<?php $t1 = time();$x = ' ';while(time()-$t1<10){ $w = gzcompress($x.'a'); $x.= $w;}
Output for 7.0.0 - 7.0.14, 7.1.0 - 7.1.20, 7.2.0 - 7.2.6
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 26740712 bytes) in /in/AWe3V on line 3
Process exited with code 255.
Output for 7.0.20

Process exited with code 137.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 26740684 bytes) in /in/AWe3V on line 3
Process exited with code 255.
preferences:
137.99 ms | 402 KiB | 135 Q