[SOLVED] help finding a function..

[knowram]

I am looking for a function that will check to see if one string exists in anther. here is an example.

 

 

$stringa = "new";
$stringb = "Show new replies to you posts"

if ($stringa is in $stringb){ 
   do something here
}

 

any ideas?

thanks for the help

[trq]

strpos.

[per1os]

www.php.net/ereg

www.php.net/strstr

www.php.net/eregi

www.php.net/stristr

www.php.net/strpos