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如何去掉字符串首尾部一个或多个换行符<br />

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2016-06-13 10:18:25969browse

怎么去掉字符串首尾部一个或多个换行符

怎么去掉字符串尾部一个或多个换行符


$str=“


文字

 

 



";



$str=preg_replace("/^[
]+|[
]+$/","",$str);
怎么写才正确?

------解决方案--------------------
$str = str_replace('
','',$str);
------解决方案--------------------

PHP code
<?php $str=<<<HTML<br /> <br> <br>文<br>字<br><br>   <br>   <br><br><br>HTML;echo preg_replace('/(^(<br>\s*)+)|((<br>\s*)+$)/is','',$str);<div class="clear">
                 
              
              
        
            </div>
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