3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo memory_get_usage(), "\n"; $var = array('value1', 'value2', 'value3'); $a = $var[0]; $b = $var[1]; $c = $var[2]; $x = $var[0]; $y = $var[1]; $z = $var[2]; echo memory_get_usage(), "\n";
Output for 7.4.0 - 7.4.1
387784 387816
Output for 7.3.0 - 7.3.13
387704 387736
Output for 7.2.0 - 7.2.26
383888 383920
Output for 7.1.0 - 7.1.33
347376 347408
Output for 7.0.0 - 7.0.33
347376 347784
Output for 5.6.0 - 5.6.40
217448 218736
preferences:
56.81 ms | 1099 KiB | 4 Q