<?php function reorderArray($array, $key) { if(!array_key_exists($key, $array)) { return $array; } $one = []; foreach($array as $k=>$v) { if($k===$key) { break; } $one[$k] = $v; unset($array[$k]); } return array_merge($array, $one); } $array=[1=>'foo', 4=>'bar', 9=>'baz', 'test'=>51]; var_dump(reorderArray($array, 9)); var_dump(reorderArray($array, 'test'));
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