CODEWITHSUNDEEP
phpregex
D T
D T

Reputation: 3746

How to replace "\\" in a URL using regex?

$tag_path = "c:\work\link2\\tmp\\5699\\tables";

I want to delete only the last \\tables in $tag_path.

I used the code below:

$tag_path = preg_replace("/\\\\tables$/i", "", $tag_path);

But it returned the following result:

c:\work\link2\\tmp\\5699\

Why? How can I delete the last \\tables in $tag_path?

If i echo tag_path="c:\work\link2\tmp\5699", But i write log tag_path="c:\work\link2\\tmp\\5699\"

Upvotes: 0

Views: 103

Answers (2)

hek2mgl
hek2mgl

Reputation: 157947

Just:

str_replace('\\tables', '', $tag_path);

... should do the job. Note that I'm using single quotes and I'm using str_replace() in favour of preg_replace() because you are about to replace a constant pattern, no regex. In this case str_replace() is simpler and therefore faster.

Update:

In comments you told that you want to replace \\tables only if it is the end of the path. Then a regex is the right solution. Use this one:

preg_replace('~\\\\tables$~', '', $tag_path);

Also here the single quotes do the trick. Check this answer which explains that nicely. Furthermore I'm using ~ as the pattern delimiter for more clearness.

Upvotes: 2

Shankar Narayana Damodaran
Shankar Narayana Damodaran

Reputation: 68466

Use strrpos() as a lookbehind for the last \\. (No strict rule)

This even works if your tables is TABLES , tab or any other data after the last \\ 

echo substr($tag_path,0,strrpos($tag_path,'\\'));

Demonstration

Upvotes: 1

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