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valid_unicode

Definition:
function valid_unicode($i) {}

Helper function to determine if a Unicode value is valid.

Parameters

  • int $i: Unicode value

Return values

returns:True if the value was a valid Unicode number

Source code

function valid_unicode($i) {

	return ( $i == 0x9 || $i == 0xa || $i == 0xd ||

			($i >= 0x20 && $i <= 0xd7ff) ||

			($i >= 0xe000 && $i <= 0xfffd) ||

			($i >= 0x10000 && $i <= 0x10ffff) );

}

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