[PHP] ASCII Chars Only

[Richard Collyer]

Hello,

Trying to get the following working. I am trynig to select only ASCII 
characters (not extended ASCII) so that if the string contains 
characters outside the 32 - 126 range of "good" characters then $Discard 
is returned as > 0.

But it is going overboard telling me that every character is bad :(

Ideas?

Cheers
Richard


        $test = "飯島真�as";
        
        function non_ascii($str) {      
                $Discard = 0;
                
                for ($i=0; $i < strlen($str); $i++)
                {
                        $char = ord($test{$i});

                        if (($char < 32 || $char > 126)) {
                                $Discard++;
                        }
                }       
                
                return $Discard;
        }
        
        print non_ascii($test);

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