How to get parameters from a URL string?

Question

I have a HTML form field $_POST[\"url\"] having some URL strings as the value. Example values are:

https://example.com/test/1234?email=xyz@test.com
         


        

Answer 1

As mentioned in other answer, best solution is using

parse_url()

You need to use combination of parse_url() and parse_str().

The parse_url() parse URL and return its components that you can get query string using query key. Then you should use parse_str() that parse query string and return values into variable.

$url = "https://example.com/test/1234?basic=2&email=xyz2@test.com";
parse_str(parse_url($url)['query'], $params);
echo $params['email']; // xyz2@test.com

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Also you can do this work using regex.

preg_match()

You can use preg_match() to get specific value of query string from URL.

preg_match("/&?email=([^&]+)/", $url, $matches);
echo $matches[1]; // xyz2@test.com

preg_replace()

Also you can use preg_replace() to do this work in one line!

$email = preg_replace("/^https?:\/\/.*\?.*email=([^&]+).*$/", "$1", $url);
// xyz2@test.com