How can I get parameters from a URL string?

Question

You can use the parse_url() and parse_str() for that.

$parts = parse_url($url);
parse_str($parts['query'], $query);
echo $query['email'];

If you want to get the $url dynamically with PHP, take a look at this question:

Get the full URL in PHP

All the parameters after ? can be accessed using $_GET array. So,

echo $_GET['email'];

will extract the emails from urls.

Use the parse_url() and parse_str() methods. parse_url() will parse a URL string into an associative array of its parts. Since you only want a single part of the URL, you can use a shortcut to return a string value with just the part you want. Next, parse_str() will create variables for each of the parameters in the query string. I don't like polluting the current context, so providing a second parameter puts all the variables into an associative array.

$url = "https://mysite.com/test/[email protected]&testin=123";
$query_str = parse_url($url, PHP_URL_QUERY);
parse_str($query_str, $query_params);
print_r($query_params);

//Output: Array ( [email] => [email protected] [testin] => 123 ) 

As mentioned in another answer, the best solution is using parse_url().

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

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

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

---

Also you can do this work using regex: preg_match()

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

preg_match("/&?email=([^&]+)/", $url, $matches);
echo $matches[1]; // [email protected]

preg_replace()

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

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