Posted by Edward Z. Yang on 05/28/07 19:19

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Andy Hassall wrote:
> No, that's not the case - PHP strings are stored with both the length and the
> data, unlike C strings that just has one pointer and uses a terminator. They're
> "binary-safe" - NUL doesn't terminate the string. [snip]

Andy is correct. By default, PHP strings are treated like binary
strings, which works great for 8-bit encodings but not so much for UTF-8
or other multibyte character encodings. mbstring tries to "fix" this
using the automatic string overload, but then you lose the ability to
process binary data.

- --
Edward Z. Yang GnuPG: 0x869C48DA
HTML Purifier <htmlpurifier.org> Anti-XSS HTML Filter
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