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在扼杀后消除所有非字母数字特性
原标题:Removing all non-alphanumeric characters at end of string

在扼杀结束时,如何消除所有非字母数字特性。 例如:

Quick @# brown fox -  
Quick @# brown fox##  
Quick @# brown fox  
Quick @# brown fox @$#  

......

Quick @# brown fox

力求尽可能使用<代码>preg_replace,因为ereg_replace已作解释。

还可以 t,允许在扼杀、引引引、挖掘标记、问题标记之后具有特定的非字母数字特性。

最佳回答
$str =  Quick @# brown fox @$# ;
$rep = preg_replace( /[^a-z0-9]+/i ,   , $str);
var_dump($rep);
问题回答
$rep = preg_replace( /W+$/ ,   , $str);




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