Check unicode in PHP

Question

How can I check whether a character is a Unicode character or not with PHP?

Answer 1

Actually you don't even need the mb_string extension:

if (strlen($string) != strlen(utf8_decode($string)))
{
    echo 'is unicode';
}

And to find the code point of a given character:

$ord = unpack('N', mb_convert_encoding($string, 'UCS-4BE', 'UTF-8'));

echo $ord[1];