下列代码的输出是 <?php $x=array("aaa","ttt","www","ttt","yyy","tttt"); $y=array_count_values($x); echo $y["ttt"]; ?>
<?php $x=array("aaa","ttt","www","ttt","yyy","tttt"); $y=array_count_values($x); echo $y["ttt"]; ?>
