Determines if a Unicode codepoint is valid.
Parameters
$iintrequired- Unicode codepoint.
Source
function valid_unicode( $i ) {
$i = (int) $i;
return ( 0x9 === $i || 0xa === $i || 0xd === $i ||
( 0x20 <= $i && $i <= 0xd7ff ) ||
( 0xe000 <= $i && $i <= 0xfffd ) ||
( 0x10000 <= $i && $i <= 0x10ffff )
);
}
Changelog
| Version | Description |
|---|---|
| 2.7.0 | Introduced. |
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