3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [3=>'three',7=>'seven']; echo 'CURRENT: '.current($a).'; RESET: '.reset($a).PHP_EOL; $a+=[2=>'two']; var_export($a); echo PHP_EOL.'CURRENT: '.current($a).'; RESET: '.reset($a).PHP_EOL; sort($a); var_export($a); echo PHP_EOL.'CURRENT: '.current($a).'; RESET: '.reset($a).PHP_EOL; unset($a[0]); var_export($a); echo PHP_EOL.'CURRENT: '.current($a).'; RESET: '.reset($a).PHP_EOL;
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
CURRENT: three; RESET: three array ( 3 => 'three', 7 => 'seven', 2 => 'two', ) CURRENT: three; RESET: three array ( 0 => 'seven', 1 => 'three', 2 => 'two', ) CURRENT: seven; RESET: seven array ( 1 => 'three', 2 => 'two', ) CURRENT: three; RESET: three
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 CURRENT: three; RESET: three array ( 3 => 'three', 7 => 'seven', 2 => 'two', ) CURRENT: three; RESET: three array ( 0 => 'seven', 1 => 'three', 2 => 'two', ) CURRENT: seven; RESET: seven array ( 1 => 'three', 2 => 'two', ) CURRENT: three; RESET: three
preferences:
199.67 ms | 402 KiB | 202 Q