#30801 [NEW]: imagettftext 'text' parameter wrongly describes Unicode character entities
| From: | andy at andyh dot co dot uk | Date: | Mon, 15 Nov 2004 19:44:33 +0000 |
| Subject: | #30801 [NEW]: imagettftext 'text' parameter wrongly describes Unicode character entities | ||
| Groups: | php.doc | ||
| Request: | Send a blank email to phpdoc+get-969365090@lists.php.net to get a copy of this message | ||
From: andy at andyh dot co dot uk
Operating system: n/a
PHP version: 5.0.2
PHP Bug Type: Documentation problem
Bug description: imagettftext 'text' parameter wrongly describes Unicode character
entities
Description:
------------
The description of the 'text' parameter in imagettftext wrongly describes
decimal numeric character entities as "UTF-8 character sequences", whereas
the function actually accepts BOTH of UTF-8 character sequences, and
decimal numeric character entities.
http://uk2.php.net/imagettftext
"
text
The text string.
May include any UTF-8 character sequences (of the form: {) to
access characters in a font beyond the first 255
"
{ is not a UTF-8 character sequence, it is a decimal numeric
character reference as per section 5.3.1 of HTML 4.0.1.
http://www.w3.org/TR/html4/charset.html#h-5.3.1
This has nothing to do with the UTF-8 encoding of Unicode characters; the
reference is entirely ASCII, and the character it refers to is the code
point in the Unicode character set - not the corresponding UTF-8 encoding
of that character.
Also the example value "123" given is not past the first 255 characters in
the font.
imagettftext passes the string to GD, which expects a UTF-8 encoded string
according to its documentation. So, any character above 127 will be a
malformed UTF-8 string.
See: http://www.boutell.com/gd/manual2.0.33.html#gdImageStringFT
"
The null-terminated string argument is considered to be encoded via the
UTF_8 standard; also, HTML entities are supported, including decimal,
hexadecimal, and named entities (2.0.26).
"
Given characters in the 128-255 range, which are not valid UTF-8 single
byte characters, it appears to fall back to using them as a single-byte
character, but this is not documented.
Suggest the description be changed to something like:
"
text
The text string, encoded in UTF-8.
May include decimal numeric character references (of the form:
€) to access characters in a font beyond position 127.
"
(The value 8364 is the Euro symbol)
--
Edit bug report at http://bugs.php.net/?id=30801&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=30801&r=trysnapshot4
Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=30801&r=trysnapshot50
Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=30801&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=30801&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=30801&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=30801&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=30801&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=30801&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=30801&r=support
Expected behavior: http://bugs.php.net/fix.php?id=30801&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=30801&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=30801&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=30801&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=30801&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=30801&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=30801&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=30801&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=30801&r=float
MySQL Configuration Error: http://bugs.php.net/fix.php?id=30801&r=mysqlcfg