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PHP函数ereg与preg的区别

2010-11-08 15:26:12| 分类：软件编程 | 标签： |举报 |字号大中小订阅

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1.ereg里面是不需要也不能使用分隔符和修饰符的.

2.'.'在正则里面一般是除了换行符以外的全部字符，但是在ereg里面的'.'是任意字符，即包括换行符!如果在preg里面希望'.'能够包括换行符，可以在修饰符中加上's'。

3.ereg默认使用贪婪模式,并且不能修改.

4.preg的速度要远远比ereg快.

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