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PHP 5.3 ereg()报错的问题解决

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Release: 2016-06-13 09:38:18
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在php5.3环境下有时会出现Deprecated: Function ereg() is deprecated in...和Deprecated: Function ereg_replace() is deprecated in...这些类型的报错提示。

PHP 5.3 ereg() 无法正常使用,提示“Function ereg() is deprecated Error”。问题根源是php中有两种正则表示方法,一个是posix,一个是perl,php6打算废除posix的正则表示方法所以后来就加了个preg_match。此问题解决办法很简单,在ereg前加个过滤提示信息符号即可:把ereg()变成@ereg()。这样屏蔽了提示信息,但根本问题还是没有解决,php在5.2版本以前ereg都使用正常,在5.3以后,就要用preg_match来代替ereg。所以就需要变成这样,原来:

if (!ereg("^[0-9]+$",$id))
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改成:

if (!preg_match("/^[0-9]+$/",$id))
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特别提醒:posix与perl的很明显的表达区别就是是否加斜杠,所以与ereg相比,后者在正则的前后分别增加了两个”/”符号,不能缺少。

Tips:此问题在php5.2之前版本不会出现。

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