PHP convert htmentities to latin with euro sign

Question

I have a script that converts UTF8 to htmlentities. The result for the euro sign is &#8364. I am trying to convert this back into latin (ISO-8859-15) which I believe has the euro sign in it.

When I try

html_entity_decode('&#8364', ENT_QUOTES, 'ISO-8859-15');

it does not convert it to

€

How do I do this? (The final output will be a windows txt file.)

Edit ** I change the input string to make it more obvious as some people did not pick up on this in the second sentence.

Answer 1

Windows does not follow the ISO charsets, it uses an older encoding:

html_entity_decode($string, ENT_QUOTES, 'CP1251');

The Euro symbol becomes \x88 there, whereas Latin-9/ISO-8859-15 would have \xA4