3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i=0; $i<10; $i++) { $a = range(1, 10000); echo memory_get_usage(true) . PHP_EOL; }
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.26, 7.3.0 - 7.3.13, 7.4.0 - 7.4.1
2097152 2097152 2097152 2097152 2097152 2097152 2097152 2097152 2097152 2097152
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
1835008 2359296 2359296 2621440 2621440 2883584 2883584 3145728 3145728 3407872
Output for 5.3.0 - 5.3.29
2359296 2621440 2883584 2883584 3145728 3145728 3407872 3407872 3670016 3670016
Output for 5.2.2, 5.2.7 - 5.2.17
1572864 2359296 2097152 2621440 2359296 2883584 2621440 3145728 2883584 3145728
Output for 5.2.3 - 5.2.6
1572864 2621440 2097152 2883584 2359296 3145728 2621440 3145728 2883584 3145728
Output for 5.2.1
1572864 2359296 1835008 2359296 2097152 2621440 2359296 2883584 2621440 3145728
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/Url7W on line 5
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_usage() in /in/Url7W on line 5
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/Url7W on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_usage() in /in/Url7W on line 5
preferences:
206.95 ms | 401 KiB | 325 Q