How to convert some multibyte characters into its numeric html entity using PHP?

Test string:

$s = "convert this: ";
$s .= "–, —, †, ‡, •, ≤, ≥, μ, ₪, ©, ® y ™, ⅓, ⅔, ⅛, ⅜, ⅝, ⅞, ™, Ω, ℮, ∑, ⌂, ♀, ♂ ";
$s .= "but, not convert ordinary characters to entities";

$encoded = mb_convert_encoding($s, 'HTML-ENTITIES', 'UTF-8');

asssuming your input string is UTF-8, this should encode most everything into numeric entities.

Well htmlentities doesn't work correctly. Fortunately someone has posted code on the php website that seems to do the translation of multibyte characters properly

I did work on decoding ascii into html coded text (&#xxxx). https://github.com/hellonearthis/ascii2web

来源：https://stackoverflow.com/questions/5123638/how-to-convert-some-multibyte-characters-into-its-numeric-html-entity-using-php

标签

php

string

unicode

utf-8

multibyte

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