3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = []; for($i = 0; $i < 5000; $i++) { $array[] = md5('hallo'); $array[] = md5('bla'); } echo number_format(memory_get_usage(), 0, ',', '.'); echo "\n"; echo number_format(memory_get_usage(true), 0, ',', '.');
Output for 7.2.0
1.552.808 2.097.152
Output for 7.1.0, 7.1.7
1.516.264 2.097.152
Output for 7.1.5 - 7.1.6
1.516.568 2.097.152
Output for 7.0.0 - 7.0.20
1.516.280 2.097.152
Output for 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
2.269.808 2.359.296
Output for 5.4.10 - 5.4.45
2.270.328 2.359.296
Output for 5.4.0 - 5.4.9
2.269.800 2.359.296
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/5VubN on line 3
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/5VubN on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/5VubN on line 3
Process exited with code 255.
preferences:
154.53 ms | 401 KiB | 175 Q