Str_replace + regular expression

Question

I have:

http://stackoverflow.com/questions/43242&cat=aa&id=342342 http://stackoverflow.com/questions/43242&cat=aa&body=434&id=232 http://stackoverflow.com/questions/43242&cat=aa&call=2323&id=14143434 

I would like to receive:

this link without parameter id:

 http://stackoverflow.com/questions/43242&cat=aa http://stackoverflow.com/questions/43242&cat=aa&body=434 http://stackoverflow.com/questions/43242&cat=aa&call=2323 

how to do it with php? str_replace + regex?

Answer 1

 preg_replace('~&id=[0-9]+~', '', $str); 

Answer 2

Use the appropriate function for this, not regular expressions, as URLs are not regular.

Then you have to split the query part that can be done using regular expressions, but I would like to split it and then filter out the identification part.