PHP preg_replace URL pattern

Question

I have the following URL structure:

http://website.com/images/folder1/folder2/123456/x500x1000_2x_ImageName.jpg

I need to remove the crop resolution "x500x1000_2x_" from the image name, like so:

http://website.com/uploads/folder1/folder2/123456/ImageName.jpg

I tried numerous things:

$img = preg_replace('/\[x](\d+)[x](\d+)[_2x_]\.*/', '', $img);
$img = preg_replace('/[x]\d[x]\d[_2x_]\.*/', '', $img);
$img = preg_replace('/\/\[x]+\d+[x]+\d+\D+\d\.*/', '', $img);

I am really not good with preg_replace, can anyone help me please?

Rizier123 · Accepted Answer · 2015-03-29 16:45:05Z

3

This should work for you:

(Here I just replace x\d+x\d+_\d+x_ of the basename() of the url with preg_replace(). At the end I just concatenate the url again with dirname() together)

<?php

    $img = "http://website.com/images/folder1/folder2/123456/x500x1000_2x_ImageName.jpg";
    echo $img = dirname($img) . "/" . preg_replace("/x\d+x\d+_\d+x_/", "", basename($img));

?>

output:

http://website.com/images/folder1/folder2/123456/ImageName.jpg

regex explanation:

x\d+x\d+_\d+x_

x matches the character x literally (case sensitive)
\d+ match a digit [0-9]
- Quantifier: + Between one and unlimited times, as many times as possible, giving back as needed [greedy]
x matches the character x literally (case sensitive)
\d+ match a digit [0-9]
- Quantifier: + Between one and unlimited times, as many times as possible, giving back as needed [greedy]
_ matches the character _ literally
\d+ match a digit [0-9]
- Quantifier: + Between one and unlimited times, as many times as possible, giving back as needed [greedy]
x_ matches the characters x_ literally (case sensitive)

edited Mar 29, 2015 at 16:45

answered Mar 29, 2015 at 16:35

Rizier123

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2 Comments

tmt Over a year ago

I was about to write that it's going to cause a problem if the name contains underscore but you have already changed it. :-) +1

rainerbrunotte Over a year ago

thanks for that! works great! (someone else must have edited it actually, wasn't me) :-)

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