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@ 2015-11-06T16:41:25Z

<?php

class Foo {
    public function spam(array $values) {
        usort($values, [$this, 'sort']);
        return $values;
    }
    
    protected function sort($a, $b) {
        return -1;
    }
}
$a = [
    3,
    4,
    1,
    2,
];

$foo = new Foo();
var_dump($foo->spam($a));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
usort: documentation ( source)

preferences:dark modelive preview

42.49 ms | 406 KiB | 6 Q