3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = []; for($i = 0; $i < 50000; $i++) { $array[] = md5('hallo'); $array[] = md5('bla'); } var_dump(memory_get_usage()); var_dump(memory_get_usage(true));
Output for 7.4.0 - 7.4.1
int(10986392) int(12587008)
Output for 7.3.0 - 7.3.13
int(10986312) int(12587008)
Output for 7.2.0 - 7.2.26
int(10982456) int(12587008)
Output for 7.1.0 - 7.1.33
int(10945784) int(12587008)
Output for 7.0.0 - 7.0.33
int(10945800) int(12587008)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
int(20466424) int(20971520)
Output for 5.4.10 - 5.4.45
int(20466960) int(20971520)
Output for 5.4.0 - 5.4.9
int(20466408) int(20971520)
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/Voki5 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/Voki5 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Voki5 on line 3
Process exited with code 255.

preferences:
212.06 ms | 401 KiB | 325 Q