PHP in a Nutshell

Name

ord()

Synopsis

    int ord ( string str )

The ord() function takes a string and returns the equivalent ASCII value. For example:

    $mystr = "ASCII is an easy way for computers to work with strings\n";
    if (ord($mystr{1}) =  = 83) {
            print "The second letter in the string is S\n";
    } else {
            print "The second letter is not S\n";
    }

That code should output The second letter in the string is S. The chr() function does the opposite of ord(): it takes an ASCII value and returns the equivalent character.