3v4l.org

run code in 300+ PHP versions simultaneously
<?php function func(array $a){ $a[0]=10; } $a=[1, 2, 3, 4]; var_dump($a); func($a); var_dump($a);
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) } array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) }
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/jf5VJ on line 7
Process exited with code 255.

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