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run code in 200+ php & hhvm versions
Bugs & Features
<?php function abc($a) { // unset($a[-1]); } $a = range(1, 5000); echo memory_get_peak_usage(), "\n"; abc($a); echo memory_get_peak_usage(), "\n";
Output for 7.2.0 - 7.2.6
649448 649552
Output for 7.0.0 - 7.1.0, 7.1.7 - 7.1.20
612776 612880
Output for 7.1.5 - 7.1.6
612944 613048
Output for 5.5.24 - 5.6.28
965992 966088
Output for 5.4.0 - 5.4.45
966400 966496
Output for 5.3.11 - 5.3.29
1368264 1368400
Output for 5.3.0 - 5.3.10
1367944 1368080
Output for 5.2.10 - 5.2.17
786048 786272
Output for 5.2.7 - 5.2.9
786064 786288
Output for 5.2.3 - 5.2.6
786392 786616
Output for 5.2.2
784280 784464
Output for 5.2.1
783768 783952
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function memory_get_peak_usage() in /in/jGK1M 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/jGK1M 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/jGK1M 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/jGK1M on line 10