从php中的字符串中删除转义序列 [英] remove escape sequences from string in php

问题描述

我正在使用已经转义字符序列的mysqldump文件。我需要知道一个字符串的长度作为其数据库值，但转储中有转义字符，它将长度添加到字符串。

我已经使用了 stripslashes（）它正确地解除单引号和双引号，但它没有不要触摸 \r\\\
。

我担心还有其他转义的字符序列，我不知道。有没有一个我可以使用的功能，会给我真正的长度的字符串，因为它将在数据库中？如果我必须构建自己的函数，还应该处理什么其他序列？

解决方案

strip c slashes（）功能确实如此：

  stripcslashes（ 'foo\r\\\
'）; 
  

I'm working with a mysqldump file that has escaped character sequences. I need to know the length of a string as its database value, but the dump has escape characters in it, which add length to the string.

I've used stripslashes() which properly un-escapes single- and double-quotes, but it doesn't touch the \r\n.

I'm concerned there are other escaped character sequences in there that I'm not aware of. Is there a function I can use that will give me the true length of the string as it would be in the database? If I have to build my own function, what other sequences should it handle?

解决方案

The strip c slashes() function does exactly that:

stripcslashes('foo\r\n');

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