[SOLVED] Determin wether string contains . . . .

[the_oliver]

Hello,

Im trying to get an if statment to do veraies things depandin on the pattern of the strings contents.  Eg:

 

If the sting is in the format "number.number.number.number", (where the only fixed factor is the number of .'s) then do this: (somestuff)

 

If the last 10 charictors of string are "domain.tld" then do this: (somestuff)

 

Else do this: (somestuff)

 

Can anyone sugges how to look for the patterns?

Thanks!

 

(The resion behind it is that i need to be able to translate host-abreviations into there domain name, or ip address, and visa-versa!  All that needs to be done from a simple function which is fed the current value. and whats wanted back.  It needs to be able to determin what the current value type is for its self)

 

 

 

 

[toplay]

Try something like this:

 

<?php

if (preg_match('/^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/', $data)) {
    // IP address match	
} else 
if (preg_match('/[a-z]{6}\\.[a-z]{3}$/i', $data)) {
    // Has six letters, a period, then three letters at the end 
} else {
    // Something else
}

?>

[the_oliver]

Fantastic. No wonder tring to write it gave me a headach!!  Many thanks!