Online PHP editor | output for 96frT

@ 2020-10-15T16:17:30Z

<?php

function array_subtract(array $source, array $subtractor)
{
    foreach ($subtractor as $subtractorItem) {
        $subtractorKey = array_search($subtractorItem, $source, true);

        if ($subtractorKey !== false) {
            unset($source[$subtractorKey]);
        }
    }

    return array_values($source);
}

var_dump(array_subtract([ 't', 'e', 's', 't' ], [ 't' ])); // [ 'e', 's', 't' ]
var_dump(array_subtract([ 't', 'e', 's', 't' ], [ 't', 't' ])); // [ 'e', 's' ]
var_dump(array_subtract([ 't', 'e', 's', 't' ], [ 't', 'e', 's', 't' ])); // []
var_dump(array_subtract([ 't', 'e', 's', 't' ], [ 'x' ])); // [ 't', 'e', 's', 't' ]

Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: array(3) { [0]=> string(1) "e" [1]=> string(1) "s" [2]=> string(1) "t" } array(2) { [0]=> string(1) "e" [1]=> string(1) "s" } array(0) { } array(4) { [0]=> string(1) "t" [1]=> string(1) "e" [2]=> string(1) "s" [3]=> string(1) "t" }
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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