basic PHP help

[dast]

I have a form with form fields named PROD_1234-2_12_25 etc. I need to loop through the form and any fields that have a value in I ned to strip the PROD bit and the bit after the .

For example PROD_1234-2_12_25 would become 1234-2. Can anyone help me? Thanks in advance

[wilku]

You can iterate through $POST array and find if the key matches your conditions:

foreach ($_POST as $key=>$value)
{
 //check $key and $value here
}

As for checking the key, I suppose [man]preg_match[/man] would suit your needs with regex like:

/PROD_([^_]+)/

In theory it should mean: find string "PROD_" and then match 1 or more characters that aren't an underscore. I wasn't very good at making regexes that work right out of the box though, so you have to check that last one.

[dast]

Thanks a lot for the help. In the end I did it this way:

	$newstr = str_replace("PROD_", "", $key);
	$prodID = substr($newstr, 0, strpos($newstr, "_"));