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How can I check for a plus sign using regular expressions?

 原文  2011-01-03 04:51:05  9   2    php

Question

I'm trying to check for a plus sign using PHP and regular expressions.

Here is the code I got so far. 

preg_replace('#[^-a-zA-Z0-9_&; ]#', '', $abcd)

2 answers

solution1
 5 ACCPTED  2011-01-03 04:53:13

您可能只需要使用反斜杠转义加号： \\+ 。

solution2
 0  2011-01-03 04:55:19

在列表中添加一个+。 

preg_replace('#[^-a-zA-Z0-9_&; +]#', '', $abcd)

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