PHPで配列の最初の要素を削除するにはどうすればよいですか?

Array ( [0] => banana [1] => apple [2] => raspberry )

$arr[$k]); unset($arr[$k]); return $r; } // test it on a simple associative array $arr = array('x'=>'ball','y'=>'hat','z'=>'apple'); print_r($arr); print_r(array_kshift($arr)); print_r($arr); ?> Output: Array ( [x] => ball [y] => hat [z] => apple ) Array ( [x] => ball ) Array ( [y] => hat [z] => apple