3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = [ 0 => 1, 1 => 2, 2 => 3, 3 => 4, 4 => 5, ]; $e = [ 110 => 1, 111 => 2, 112 => 3, 113 => 3, 114 => 3, 115 => 8, 116 => 9 ]; print_r(array_diff($i, $e)); print_r(array_diff($e, $i));
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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 ( [3] => 4 [4] => 5 ) Array ( [115] => 8 [116] => 9 )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/54ANq on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/54ANq on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/54ANq on line 2
Process exited with code 255.

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