3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo memory_get_peak_usage(), PHP_EOL; $a = range(1, 10000); $a[9998] = 0; echo memory_get_peak_usage(), PHP_EOL; // 380824 // 874320 // 381368 // 1464752
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
422360 653320
Output for 8.1.0 - 8.1.28
422664 915776
Output for 8.0.0 - 8.0.30
422504 915280
Output for 7.4.0 - 7.4.33
422680 915584
Output for 7.3.0 - 7.3.33
422432 915504
Output for 7.2.0 - 7.2.33
418000 911528
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
381296 874856
Output for 5.6.0 - 5.6.40
220544 1709760
Output for 5.5.0 - 5.5.38
220544 1709712
preferences:
238.73 ms | 401 KiB | 330 Q