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This article is about how to solve the problem that php backslash can't be used. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Php backslashes are not available because if you want to use backslash symbols to escape special characters, you need to use a double quote string instead of a single quote string, such as "fwrite ($handle," test\ r\ ntest ");".

This article operating environment: Windows7 system, PHP7.1 version, DELL G3 computer

What if the php backslash doesn't work?

To escape special characters using a backslash symbol, you need to use a double quote string instead of a single quote string, try the following:

Fwrite ($handle, 'test\ r\ ntest'); / / not workingfwrite ($handle, "test\ r\ ntest"); / / works as expected

It is worth noting that if your data comes from other sources (non-PHP files, Web forms), you may skip this issue altogether, and this problem occurs only if you hard-code strings in a script file. For more information, please feel free to browse the relevant man pages:

Http://www.php.net/manual/en/language.types.string.php

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