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run code in 150+ php & hhvm versions
Bugs & Features
<?php $memory = memory_get_usage(true); $dates = array(); for ($i = 0; $i < 100; $i++) { $date = new DateTime(); $dates[] = $date->format('Y-m-d H:i:s'); } var_dump(memory_get_usage(true) - $memory); $memory = memory_get_usage(true); $dates = array(); for ($i = 0; $i < 100; $i++) { $dates[] = date('Y-m-d H:i:s', time()); } var_dump(memory_get_usage(true) - $memory);
Output for 5.2.1 - 5.6.28, 7.0.0 - 7.1.0
int(0) int(0)
Output for hhvm-3.12.0
int(10576) int(0)
Output for hhvm-3.10.0
int(10592) int(0)
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function memory_get_usage() in /in/kbRhm on line 2
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_usage() in /in/kbRhm on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: memory_get_usage() in /in/kbRhm on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_usage() in /in/kbRhm on line 2