PHP Unicode代码点到字符 [英] PHP Unicode codepoint to character

问题描述

我想将Unicode代码点转换为字符.这是我尝试过的:

I would like to convert Unicode codepoint to character. Here is what I have tried:

$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

推荐答案

您不需要将整数转换为十六进制字符串，而是使用

You don't need to convert integer to hexadecimal string, instead use IntlChar::chr:

echo IntlChar::chr(127468);

直接来自IntlChar::chr的文档:

按代码点值返回Unicode字符

Return Unicode character by code point value

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