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run code in 300+ PHP versions simultaneously
<?php class Foo { function __construct() { $this->bar = new Bar($this); } } class Bar { function __construct($foo = null) { $this->foo = $foo; } } for($i=0;$i<50000;$i++) { $foo = new Foo(); unset($foo); if($i % 10000 == 0) { echo number_format(memory_get_usage()) . "\n"; } }
Output for 7.3.0 - 7.3.13, 7.4.0 - 7.4.1
389,712 513,456 515,120 516,784 518,448
Output for 7.2.0 - 7.2.26
385,848 508,760 508,760 508,760 508,760
Output for 7.1.0 - 7.1.33
349,176 472,920 472,920 472,920 472,920
Output for 7.0.0 - 7.0.33
349,200 472,944 472,944 472,944 472,944
Output for 5.6.0 - 5.6.40
223,064 1,206,840 1,206,840 1,206,840 1,206,840
Output for 5.5.0 - 5.5.38
223,048 1,206,808 1,206,808 1,206,808 1,206,808
Output for 5.4.0 - 5.4.45
223,552 1,207,312 1,207,312 1,207,312 1,207,312
Output for 5.3.11 - 5.3.29
627,440 1,611,216 1,611,216 1,611,216 1,611,216
Output for 5.3.0 - 5.3.10
627,136 1,610,912 1,610,912 1,610,912 1,610,912
Output for 5.2.10 - 5.2.17
85,352 8,489,320 16,942,472 23,822,736 33,848,728
Output for 5.2.7 - 5.2.9
86,408 8,490,984 16,944,584 23,825,320 33,851,824
Output for 5.2.6
86,728 8,491,488 16,945,104 23,825,856 33,852,360
Output for 5.2.3 - 5.2.5
86,728 8,491,440 16,944,864 23,825,616 33,851,808
Output for 5.2.2
84,624 8,489,392 16,942,728 23,823,504 33,849,696
Output for 5.2.1
84,624 8,489,080 16,942,488 23,823,240 33,849,368
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0
Fatal error: Call to undefined function memory_get_usage() in /in/cZT5S on line 20
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_usage() in /in/cZT5S on line 20
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: memory_get_usage() in /in/cZT5S on line 20
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_usage() in /in/cZT5S on line 20
preferences:
204.23 ms | 401 KiB | 325 Q