php regex exclude string in url

Question

I have a regular expression

\(\'?.*(\/public\/images.*[^\'"])\'?\)

It matches ulrs in my CSS file. Here is examples:

background: url(/public/images/new_layout/bg-nav-active.png) no-repeat 100% 100%;
background: url(/public/images/new_layout/bg-nav-active.png?v=23423h423lj4h23l4jk23hl4jkh4h2kljh) no-repeat 0 -

But, how to exclude parameter v from URL ?v=23423h423lj4h23l4jk23hl4jkh4h2kljh

Thank You for help.

What you mean by exclude? You mean second case, It should not return in the result? — Rikesh
– Rikesh, Commented Mar 18, 2015 at 10:55

ʰᵈˑ · Accepted Answer · 2015-03-18 10:56:23Z

2

Something like this should suffice;

\(\'?.*(\/public\/images[^\'"\?\)]+)

https://regex101.com/r/eZ7iO9/1

This will match the string "/public/images/" and everything that isn't in the character '"?)

answered Mar 18, 2015 at 10:56

ʰᵈˑ

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Wiktor Stribiżew · Accepted Answer · 2015-03-18 11:35:48Z

1

This regex will match just the URLs, without any parentheses or ?vs due to the a lookbehind and a lookahead:

 (?<!\()['"]?.*(\/public\/images[^'"\?\)]+)

The non-greedy .+? makes it possible not to match ?vs.

See example here.

The output of your 2 input strings is:

/public/images/new_layout/bg-nav-active.png
/public/images/new_layout/bg-nav-active.png

edited Mar 18, 2015 at 11:35

answered Mar 18, 2015 at 11:04

Wiktor Stribiżew

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5 Comments

Casimir et Hippolyte Over a year ago

This may capture closing quotes.

Wiktor Stribiżew Over a year ago

Now, it won't capture closing quotes.

Wiktor Stribiżew Over a year ago

@ʰᵈˑ Who would be using inconsistent quotation marks like in background: url('/public/images/new_layout/bg-nav-active.png")?

ʰᵈˑ Over a year ago

.. even without inconsistent quotation marks: regex101.com/r/oK1fP8/2 (I rushed the fiddle, hence the inconsistency). You need to add " in your character class to not match [^].

Wiktor Stribiżew Over a year ago

@ʰᵈˑ: Agreed. It is the OP that misled me, since only single quotes are allowed in the beginning. I added the ['"] character class to also allow double quotes.

mmarques · Accepted Answer · 2015-03-18 10:54:02Z

-2

str_replace('v=', '', $string)

answered Mar 18, 2015 at 10:54

mmarques

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