CODEWITHSUNDEEP
regexreplace
Chris Flannagan
Chris Flannagan

Reputation: 129

regex, image src may have many different paths and I want to replace with a specific path

So I have a database from a wordpress multisite. I'm doing a search and replace on a table with regex and need to make all src's of a specific image name (image2.jpg) point to a single directory. Here's an example. I may have:

src="http://domain.com/path/weird/different/image2.jpg

and

src="http://domain2.com/path2/differentpath/helloworld/image2.jpg

I need to replace everything between src=" and /image.jpg with a specific domain/filepath.

I'm not great with regex stuff, I try, but it's just not my strong suit. Any help appreciated.

Upvotes: 0

Views: 63

Answers (2)

zx81
zx81

Reputation: 41838

Search: src="[^"]*image2\.jpg

Replace: src="http://mydomain.com/mypath/image2.jpg

The [^"]* eats up any characters that are not a double quote.

In the demo, see the substitutions pane at the bottom.

In PHP (should work with WordPress):

$replaced = preg_replace('/src="[^"]*image2\.jpg/', 
                 'src="http://mydomain.com/mypath/image2.jpg',
                 $str);

Upvotes: 2

Unihedron
Unihedron

Reputation: 11041

Use this regex:

/(?<=src=")(.*?)(?=\Q/image2.jpg\E)/

This matches anything that goes in between "src="" and "/image2.jpg", so you are free to replace this with your specific domain/filepath.

Depending on your language/ tool, you may have to escape the leading / in /image2.jpg.

  > Positive Lookbehind - assert that match must be following 'src="'
  |
  |  Anything    > Positive Lookahead - assert that match
  |         |    | is before '/image2.jpg' literally.
/(?<=src=")(.*?)(?=\Q/image2.jpg\E)/

Also try out an online regex tester.

Upvotes: 0

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