php preg_replace and the \ character [duplicate]

Question

Possible Duplicate:
php preg_replace \

I am trying to replace all occurances of the "\" character with "_c" using preg_replace.

Here is some code I have tried:

$outputStr=preg_replace('/\/','_c',$inputStr);
$outputStr=preg_replace('/\\/','_c',$inputStr);

But the $outputStr ends up as NULL in both cases. What is the correct regular expression to get the "\" character?

i searched stackoverflow for this problem - i must of missed this one somehow! sorry! — Jimmery
– Jimmery, Commented Apr 2, 2012 at 10:48

Felix Kling · Accepted Answer · 2012-04-02 12:48:41Z

2

You need to escape the slash in your string and your regex:

To use backslash in replacement, it must be doubled ("\\\\" PHP string).

$outputStr = preg_replace('/\\\\/','_c',$inputStr);

Felix Kling

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answered Apr 2, 2012 at 10:31

benedict_w

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Comments

capi · Accepted Answer · 2012-04-02 10:32:05Z

0

you just miss one '\' :

$outputStr=preg_replace('/\\\/','_c',$inputStr);

answered Apr 2, 2012 at 10:32

capi

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