Unicode Codepoint Escape Syntax #92
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| codepoint with the hexadecimal number specified within the curly braces. | ||
| Implementations MUST NOT allow Unicode codepoints beyond U+10FFFF as this is | ||
| outside the range UTF-8 can encode (see | ||
| [RFC 3629](http://tools.ietf.org/html/rfc3629#section-3)). If a codepoint |
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I could mention the WHATWG spec as well, but "RFC 3629" sounds so much more authorative!
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RFC was accepted, any objections to merging? |
hikari-no-yume
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https://wiki.php.net/rfc/unicode_escape