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<?php $_POST['order_id']=['3','a','4']; $order_id = array_map(function($v){return filter_var($v,FILTER_VALIDATE_INT);}, $_POST['order_id']); print_r($order_id);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => 3 [1] => [2] => 4 )

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