Doing if statements based on part of a string

[ro1960]

I am trying to do a bunch of if and elseif based on part of a variable.

All the variables I want to process in the same manner contain the same string:

submit_xxx
submit_yyy
submit_zzz etc..

So I would like to do something like this:

if ($_GET['var'] OPERATOR "submit_") {....

Does such an operator exists? Or do I have to do use a "==" for each variable I want to process? I guess what I am looking for is an operator that means "contain".

Thanks for any help.

[abduraooft]

There are many functions for string manipulation.
See www.php.net/substr

[digitalfiz]

PHP Code:


if(preg_match('/submit\_/i', $var))
{
//do stuff
} 


That will catch all strings with submit_ in them. Since I'm not sure how your getting $var I didn't include any code. Have no idea if your looping through and array or testing variables hard coded.

[JohnDubya]

I don't know if it makes any difference to use digitalfiz's example or mine, but this is what I use to look for a value within a variable:

PHP Code:

if (strpos($_GET['var'], 'submit_') === FALSE) {
    //$_GET['var'] does NOT contain submit_
} else {
    //$_GET['var'] DOES contain submit_
} 


http://www.php.net/strpos

[Inigoesdr]

strpos() is much faster than preg_match().