PHP Unicode代码点到字符

我想将Unicode代码点转换为字符.这是我尝试过的：

$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

解决方法:

您不需要将整数转换为十六进制字符串,而是使用IntlChar::chr：

echo IntlChar::chr(127468);

直接来自IntlChar :: chr的文档：

Return Unicode character by code point value