CODEWITHSUNDEEP
phphtml
Anon343224user
Anon343224user

Reputation: 614

Converting Symbols (Copyright, Reg etc)

I am trying to sanitise database input and found a problem with the Ⓡ character.

Ⓡ converts to 

Ⓡ

Even with html_entity_decode around the variable.

This is a problem because the field is only meant to allow 4 characters in the database.

® Actually works though and is treated as a single character.

I have the same problem with Ⓒ vs ©.

As far as I know they are just html entities so should be decoded. However they aren't even encoded with htmlspecialchars(). It just echoes out the code

Ⓡ

Does PHP have any built-in functions to solve this? Thanks

Edit just to say what I am trying to do:

I have text fields to input and add to a database which displays in a table below. When I enter any other character like < > &, it enters straight into the database as one character.

I am trying to make Ⓡ and Ⓒ always go in as one character as well (instead of 6).

I am only encoding on output in the table so certain characters don't break the website.

Upvotes: 4

Views: 2513

Answers (1)

deceze
deceze

Reputation: 522567

The problem that the entity doesn't decode when using html_entity_decode is likely that the target character set given to html_entity_decode is still the default ISO-8859-1. ISO-8859-1 cannot encode "Ⓡ" (the CIRCLED LETTER R), but it can encode "®" (the REGISTERED MARK).

So, first, to decode it correctly:

html_entity_decode('&#9415;', ENT_COMPAT, 'UTF-8')

But secondly, "Ⓡ" and "®" are not the same character, and you probably don't want "Ⓡ".

Upvotes: 2

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