字符串操作之获取字符长度、元素个数

<?php
$arr1=array(0,1,2,"effe",4);
$arr1['news_title']="dddddddd截取指定数量的字符串显示eefffe";
Echo "数组\$arr1中元素的个数为：".count($arr1);
Echo "数组\$arr1中字符的个数为：".strlen($arr1['news_title']);
?>