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run code in 300+ PHP versions simultaneously
<?php $memory = memory_get_usage(true); print $memory ."\n"; $keys = array(); for ($i = 0; $i<1000; $i++) { $keys[] = 'pref:keyname:' . rand(1000000, 9999999); } asort($keys); print memory_get_usage(true) - $memory;
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.0
2097152 0
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
262144 262144
Output for 5.3.0 - 5.3.29
786432 262144
Output for 5.2.1 - 5.2.17
262144 0
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/tljZr 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/tljZr on line 2
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/tljZr 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/tljZr on line 2
preferences:
142.98 ms | 401 KiB | 176 Q