3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [ 10 , 0x30 ]; $b = ['10', '0x30']; echo json_encode(array_intersect($a, $b)); echo "\n\n"; $a = ["foo" => 1, 2]; $b = [1, "bar" => 2]; var_dump(array_intersect($a, $b)); echo "\n\n";
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 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 - 8.3.6
[10] array(2) { ["foo"]=> int(1) [0]=> int(2) }
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/nsfPI on line 3
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/nsfPI on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/nsfPI on line 3
Process exited with code 255.
preferences:
248.17 ms | 401 KiB | 394 Q