3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = range(0, 1e7); echo memory_get_peak_usage()/1024 . 'kB'; foreach ($array as $i => $a) { echo $a; } echo memory_get_peak_usage()/1024 . 'kB';
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 268435464 bytes) in /in/Mh9hV on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 536870920 bytes) in /in/Mh9hV on line 3
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 8.0.13
Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 536870920 bytes) in /in/Mh9hV on line 3
Process exited with code 255.
Output for 5.4.7 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 32 bytes) in /in/Mh9hV on line 3
Process exited with code 255.

preferences:
195.68 ms | 402 KiB | 251 Q