3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test(){ $ret = []; for($i=0;$i<10000;$i++){ $ret[]= new stdClass(); } return $ret; } $i=0; echo memory_get_usage()."\n"; while($i++<10){ if($i==1){ $a=test(); echo memory_get_usage()."\n"; unset($a); } echo memory_get_usage()."\n"; }
Output for 7.2.0 - 7.2.10
384464 1435816 507376 507376 507376 507376 507376 507376 507376 507376 507376 507376
Output for 7.1.0 - 7.1.1, 7.1.7 - 7.1.21
347856 1399208 470768 470768 470768 470768 470768 470768 470768 470768 470768 470768
Output for 7.1.2 - 7.1.6
348152 1399504 471064 471064 471064 471064 471064 471064 471064 471064 471064 471064
preferences:
70.38 ms | 401 KiB | 38 Q