Question

I wanted to use regex to match and replace anything between my file name and closing parentheses.

I wrote a regex:

/(?<=imagecheck.php)[^)]*/

That works in php, but not in Javascript.

…How would I do in JS?

example:

 input string example 1: url(127.0.0.1/imagecheck.php)
 input string example 2: url(127.0.0.1/imagecheck.php?boost=9881732213826123918238)
 outcome string example: url(127.0.0.1/imagecheck.php?reload=oh_yes_plx&boost=123810982346023984723948723023423)

Answer 1

Look-behind is not supported in Javascript. You can use capturing group to capture the text after "imagecheck.php" instead:

.match(/imagecheck.php([^)]*)/)

The result will be in index 1 of the returned array (if there is a match).

This is an example of removing whatever after "imagecheck.php"

.replace(/(imagecheck.php)[^)]*/, "$1")