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run code in 300+ PHP versions simultaneously
<?php $template = ['A', 'B', 'C']; $myArray = [ new Element('B'), new Element('C'), new Element('A'), ]; class Element { public $name; public function __construct($name) { $this->name = $name; } } usort($myArray, function($a, $b) use ($template) { return array_search($template, $a) - array_search($template, $b); }); var_dump($myArray);

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43.35 ms | 402 KiB | 5 Q