PHP：删除指定数组元素

$arr = array(    array("id"=>"1","name"=>"abc"),    array("id"=>"2","name"=>"def"),    array("id"=>"3","name"=>"ghi"),);foreach ($arr as $key=>$value){    if($value['id'] == "2"){        unset($arr[$key]);    }}var_dump($arr);