3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo memory_get_usage(), "\n"; $a = 'value1'; $b = 'value2'; $c = 'value3'; $x = 'value1'; $y = 'value2'; $z = 'value3'; echo memory_get_usage(), "\n";
Output for 7.4.0
386728 386760
Output for 7.3.0 - 7.3.12
386648 386680
Output for 7.2.17 - 7.2.25
382704 382736
Output for 7.2.0
382744 382776
Output for 7.1.26 - 7.1.33
346192 346224
Output for 7.0.0 - 7.0.20, 7.1.0, 7.1.7
346264 346296
Output for 7.1.5 - 7.1.6
346488 346520
Output for 5.6.0 - 5.6.27
217008 217888
preferences:
56.55 ms | 796 KiB | 4 Q