3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = []; for ($i = 0; $i < 1000000; ++$i) { $arr[$i] = "always"; } printf("%.2f MiB\n", memory_get_peak_usage() / (1 << 20));
Output for 7.2.0
32.37 MiB
Output for 7.0.0 - 7.1.10
32.33 MiB
Output for 5.4.0 - 5.6.28
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 32 bytes) in /in/IUXoj on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/IUXoj on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/IUXoj on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/IUXoj on line 2
Process exited with code 255.