php按照指定长度截取字符串功能实例

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/**
 * php按照指定长度截取字符串的代码
 *
 * @param 
 * @arrange 512-笔记网： www.512PiC.com
 **/
<?php 
//if a string is longer than the defined length,  
//it will add 3 periods to the end of the string. 
//you can change it to what ever you want for example: 
//return substr($str,0,$len).'[<a href="read_more.html">Read More</a>]'; 
function strLength($str,$len){ 
	$lenght = strlen($str); 
	if($lenght > $len){ 
		return substr($str,0,$len).'...'; 
	}else{ 
		return $str; 
	} 
} 
$str = "This is a fairly long string."; 
//The fist part is the string, the second part is how long it can be 
echo strLength($str,10).'<br>'; 
echo strLength($str,30); 

/***   来自php教程（www.idcnote.com）   ***/

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