ASCII Chars Only

[Richard Collyer <richard@xxxxxxxxxxxxxx>]

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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