本文章总结了几种利用php 清除换行符,清除制表符,去掉注释标记实现代码，有需要的朋友可参考本文章。
代码如下 复制代码
*([^ ]*) *, //去掉注释标记  
                     /[s]+/,  
                     //,  
                     / /,  
                     / /,  
                     '/*[^*]**/' 
                     );  
     $replace = array (  
                     >\1                     ,  
                     ,  
                     ,  
                     ,
);  
     return preg_replace($pattern, $replace, $string);  
 }
去除连续的空格和换行符
 代码如下 复制代码
去除回车换行符
preg_replace('([rn])[s]+', , $content) //去除回车换行符
 代码如下 复制代码
'si,           // 去掉 html 标记
                 '([rn])[s]+',                 // 去掉空白字符
                 '&(quot|#34);'i,                 // 替换 html 实体
                 '&(amp|#38);'i,
                 '&(lt|#60);'i,
                 '&(gt|#62);'i,
                 '&(nbsp|#160);'i,
                 '&(iexcl|#161);'i,
                 '&(cent|#162);'i,
                 '&(pound|#163);'i,
                 '&(copy|#169);'i,
                 '(d+);'e);                    // 作为 php 代码运行
$replace = array (,
                  ,
                  \1,
                  ,
                  &,
                                    >,
                  ,
                  chr(161),
                  chr(162),
                  chr(163),
                  chr(169),
                  chr(\1));
$text = preg_replace ($search, $replace, $document);
?>