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preg_replace question

Posted on 2008-09-30
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Last Modified: 2008-09-30
<img src="abc.jpg">

I want to replace abc.jpg with ./abc.jpg, so that <img src="./abc.jpg">

Notes

1) image file may start with digit, eg:123.jpg

2) src does not always follow img, eg: <img width="125" src="abc.jpg" height="456">

Any idea on how to do it?

Thanks,
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Question by:tiger0516
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3 Comments
 
LVL 48

Accepted Solution

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hernst42 earned 2000 total points
ID: 22611421
Try:
$text = preg_replace('/src="([^"]+)"/i', 'src="./\1"', $text)
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LVL 19

Expert Comment

by:BrianGEFF719
ID: 22611494
hrenst42's suggestion is exactly what you've requested, but I'll point out additional things:

 1) If you only want to match images that don't start with ./ already then you need to do: /src="[^./]+([^"]+)"/i
 2) You should really use $1 as it is preferred to \1.


$text = preg_replace('/src="[^./]+([^"]+)"/i', 'src="./$1"', $text)
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LVL 1

Author Comment

by:tiger0516
ID: 22611717
Hi hernst42,

Thank you!

Yours works well!
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