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<?php $sortMe = [100, 1, 10, 1000]; function cmp($a, $b) { static $example = [1, 1000, 100, 10]; return array_search($a, $example) - array_search($b, $example); } uasort($sortMe, 'cmp'); var_export($sortMe);
Output for 7.0.13, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.21, 8.5.0 - 8.5.7
array ( 1 => 1, 3 => 1000, 0 => 100, 2 => 10, )

preferences:
91.18 ms | 1125 KiB | 4 Q