CODEWITHSUNDEEP
phppreg-replace
Ish
Ish

Reputation: 3

PHP preg_replace - replacing characters between special characters

I'm a beginner in PHP. And would need help in resolving the following issue.

This is the the original string 

/hs/?page_id=27&file=filename.jpg

And i would like it to be replaced with the following. 

/hs/wp-content/gallery/filename.jpg

And please note that the filename and id number are subjected to change everytime. So i guess use of wildcards could be a better choice to replace the characters between "?" and "=" .

How could this be accomplished with the use of reg_replace ? Or is there any other solution ?

Upvotes: 0

Views: 1044

Answers (2)

George Marques
George Marques

Reputation: 875

PHP parse_url and parse_str functions can be used if you want to avoid regex:

$url= '/hs/?page_id=27&file=filename.jpg';
$parsed = parse_url($url); 
parse_str($parsed['query'], $query);

$new_url = $parsed['path'] . 'wp-content/gallery/' . $query['file'];

Ideone demo.

Upvotes: 1

Dan
Dan

Reputation: 4532

The easiest way to replace characters between ? and = is to use the .* regular expression part, which will match "anything, repeated any number of times"

$result = preg_replace('[/hs/\?.*=]', '/hs/wp-content/gallery/', $input);

A more general solution, if you want to extract the file= component of any input URL, even if the parameters are in a different order, would be:

$result = preg_replace('[.*file=([^&]*).*]', '/hs/wp-content/gallery/\1', $input);

Upvotes: 0

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