Online PHP editor | output for fqE53

@ 2018-10-21T18:38:58Z

<?php

$x = ['1', '2'];
$y = ['2', '1'];
$z = ['1', '2', '4'];
$n = [1, 2];



function array_equal($a, $b) {
    return (
         is_array($a) 
         && is_array($b) 
         && count($a) == count($b) 
         && array_diff($a, $b) === array_diff($b, $a)
    );
}

echo array_equal($x, $y) ? 'y1' : 'n1';
echo array_equal($x, $z) ? 'y2' : 'n2';
echo array_equal($x, $n) ? 'y3' : 'n3';

Output for 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.4 - 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: y1n2y3
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 y1n2y3

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