Hi

how do i use a regular expression to extract the number between referrer= and & in the below:

referrer=737475791&

cheers

:-)
Easy:

[0-9]{1,}

i did it like
if (preg_match('/referrer=(.*?)&/s', $_GET[next], $regs))

With that wildcard, you will get everything between "referrer=" and "&".
Not just numbers.

Adapt your code to be able to handle it, if needed.

You can also use http_parse_params() to parse a string into an array.

http_parse_params($string, $array);

$referrer - $array['referrer'];

if (preg_match('/referrer=([0-9]+)&/', $_GET[next], $regs))

[0-9] means any number in that range and + means one or more

So it will work for referrer=125890& but not work for referrer=&