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PHP清理字符串中所有无用标签

WBOY
Release: 2016-05-26 08:21:26
Original
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很多时候需要输出一些 "纯" 字符串,也就是去除任何杂质,例如 Html 标签、空格之类的文本,输出的摘要就是如此,下面的这个函数可以帮你实现着一点.

PHP实例代码如下:

function Bing_string_cleanr( $string ){ 
$string = trim( $string );  
$string = strip_tags( $string ); 
$string = htmlspecialchars( $string, ENT_QUOTES, 'UTF-8' ); 
$string = str_replace( "n", "", $string ); 
$string = trim( $string ); 
return $string; 
}
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使用方法如下:

echo Bing_string_cleanr( '内 容
asdfeiuonsdfje' );

php删除空白,代码如下:

<?php 
$str = " This line containstliberal rn use of whitespace.nn"; 
 
// First remove the leading/trailing whitespace 
//去掉开始和结束的空白 
$str = trim($str); 
 
// Now remove any doubled-up whitespace 
//去掉跟随别的挤在一块的空白 
$str = preg_replace(&#39;/s(?=s)/&#39;, &#39;&#39;, $str); 
 
// Finally, replace any non-space whitespace, with a space 
//最后,去掉非space 的空白,用一个空格代替 
$str = preg_replace(&#39;/[nrt]/&#39;, &#39; &#39;, $str); 
//开源代码phprm.com 
// Echo out: &#39;This line contains liberal use of whitespace.&#39; 
echo "<pre class="brush:php;toolbar:false">{$str}
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";

   


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