3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = []; for ($i = 0; $i < 100000; ++$i) { $arr[$i] = true; } printf("%.2f MiB\n", memory_get_peak_usage() / (1 << 20));
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
2.37 MiB
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
4.37 MiB
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33
4.33 MiB
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
14.18 MiB
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/MGGel on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/MGGel on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/MGGel on line 2
Process exited with code 255.
preferences:
248.67 ms | 401 KiB | 354 Q