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valid_unicode ›

Since2.7.0
Deprecatedn/a
valid_unicode ( $i )
Parameters:
  • (int) $i Unicode value
    Required: Yes
Returns:
  • (bool) True if the value was a valid Unicode number
Defined at:
Codex:

Helper function to determine if a Unicode value is valid.



Source

function valid_unicode( $i ) {
	return ( $i == 0x9 || $i == 0xa || $i == 0xd ||
			( $i >= 0x20 && $i <= 0xd7ff ) ||
			( $i >= 0xe000 && $i <= 0xfffd ) ||
			( $i >= 0x10000 && $i <= 0x10ffff ) );
}