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run code in 150+ php & hhvm versions
Bugs & Features
<?php function abc($a) { unset($a[-1]); } $a = range(1, 5000); echo memory_get_peak_usage(true), "\n"; abc($a); echo memory_get_peak_usage(true), "\n";
Output for 7.0.0 - 7.1.0
2097152 2097152
Output for hhvm-3.12.0
433544 433544
Output for hhvm-3.10.0
431888 431888
Output for 5.4.0 - 5.6.28
1048576 1572864
Output for 5.3.0 - 5.3.29
1572864 2097152
Output for 5.2.3 - 5.2.17
1048576 1310720
Output for 5.2.1 - 5.2.2
786432 1310720
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function memory_get_peak_usage() in /in/8guRi on line 10
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_peak_usage() in /in/8guRi on line 10
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: memory_get_peak_usage() in /in/8guRi on line 10
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_peak_usage() in /in/8guRi on line 10