字符串操作之獲取字符長度、元素個數

<?php
$arr1=array(0,1,2,"effe",4);
$arr1['news_title']="dddddddd截取指定數量的字符串顯示eefffe";
Echo "數組\$arr1中元素的個數爲：".count($arr1);
Echo "數組\$arr1中字符的個數爲：".strlen($arr1['news_title']);
?>