我想把Unicode码点转换成字符。以下是我的尝试过程:
$point = dechex(127468); // 1f1ec
echo "\u{1f1ec}"; // this works
echo "\u{$point}"; // this outputs '\u1f1ec'
echo "\u{{$point}}"; // Parse error: Invalid UTF-8 codepoint escape sequence
echo "\u\{{$point}\}"; // outputs \u\{1f1ec\}
echo "\u{". $point ."}"; // Parse error; same as above