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<?php function build_sorter($key) { return function ($a, $b) use ($key) { if ($a[$key] == $b[$key]) { return 0; } return ($a[$key] < $b[$key]) ? -1 : 1; }; } $array = array('123' => array('1'=> 2, 'balance_USD' => -1), '12' => array('1'=> 2, 'balance_USD' => 12),); usort($array, build_sorter('balance_USD')); var_dump($array);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> array(2) { [1]=> int(2) ["balance_USD"]=> int(-1) } [1]=> array(2) { [1]=> int(2) ["balance_USD"]=> int(12) } }

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