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<?php $array[]=array('id'=>'a', 'content'=>'lemon'); $array[]=array('id'=>'b', 'content'=>'apple'); $array[]=array('id'=>'c', 'content'=>'banana'); $array[]=array('id'=>'d', 'content'=>'cherry'); $first = 'apple'; $k = array_search($first, array_column($array, 'content')); $array = array_merge(array_slice($array, $k), array_slice($array, 0, $k)); print_r($array);

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