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

Question

Test string:

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

But what for? This shouldn't be necessary if the document is properly encoded. — Pekka
– Pekka, Commented Feb 25, 2011 at 23:01
@Pekka: My problem isn't render the data, my problem is store it. I can't change the db structure nor config fields. — texai
– texai, Commented Feb 25, 2011 at 23:21
If your database can't store non-ASCII characters, you need to fix the database, not kludge your data into some ad-hoc encoded format. Keep database strings in raw form. — bobince
– bobince, Commented Feb 26, 2011 at 9:47

Marc B · Accepted Answer · 2011-02-25 23:05:41Z

11

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

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

answered Feb 25, 2011 at 23:05

Marc B

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1 Comment

Robin Michael Poothurai Over a year ago

@Marc B, You great, this is what I am looking for. much helpful

Hellonearthis · Accepted Answer · 2011-02-26 09:45:16Z

0

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

answered Feb 26, 2011 at 9:45

Hellonearthis

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Comments

Byron Whitlock · Accepted Answer · 2011-02-25 23:03:54Z

-1

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

answered Feb 25, 2011 at 23:03

Byron Whitlock

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David Spector Dec 24, 2024 at 19:42

Give an example. It works for me and others.

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