如何将Unicode特殊字符转换为html实体?

时间:2016-05-12 10:10:24

标签: php unicode utf-8 html-entities

我有以下字符串:

$string = "★ This is some text ★";

我想将其转换为html实体:

$string = "★ This is some text ★";

每个人都在写的解决方案:

htmlentities("★ This is some text ★", "UTF-8");

但是,htmlentities不能将所有unicode转换为html实体。所以它只给了我与输入相同的输出:

★ This is some text ★

我也尝试将此解决方案与两者结合使用:

header('Content-Type: text/plain; charset=utf-8');

mb_convert_encoding();

但这会打印并清空结果,根本不会转换或错误地将星号转换为:

Â

如何将★和所有其他unicode字符转换为正确的html实体?

1 个答案:

答案 0 :(得分:5)

htmlentities在这种情况下无法工作,但您可以尝试UCS-4对字符串进行编码,例如:

$string = "★ This is some text ★";
$entity = preg_replace_callback('/[\x{80}-\x{10FFFF}]/u', function ($m) {
    $char = current($m);
    $utf = iconv('UTF-8', 'UCS-4', $char);
    return sprintf("&#x%s;", ltrim(strtoupper(bin2hex($utf)), "0"));
}, $string);
echo $entity;
★ This is some text ★

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