ID: 6107
Updated by: [EMAIL PROTECTED]
Reported By: [EMAIL PROTECTED]
-Status: Open
+Status: Closed
Bug Type: Feature/Change Request
PHP Version: 4.3.2
New Comment:
This is not going to change, ever, and is documented
behavior.
Previous Comments:
------------------------------------------------------------------------
[2003-04-21 20:52:03] [EMAIL PROTECTED]
Making this as a feature request again.
------------------------------------------------------------------------
[2003-04-21 17:34:20] [EMAIL PROTECTED]
I added a note and example in the docs. Status -> Closed (wow, this is
an old bug :)
------------------------------------------------------------------------
[2003-04-21 17:19:49] [EMAIL PROTECTED]
After some quick research it looks like what you describe is expected
behavior and therefore should be documented, but not changed (at least
not without some discussion on php.internals or zend.engine2).
In Zend/zend_operators.c:
-------------------------
ZEND_API int increment_function(zval *op1)
{
.
.
.
case IS_STRING:
/* Perl style string increment */
increment_string(op1);
.
.
.
}
ZEND_API int decrement_function(zval *op1)
{
.
.
.
case IS_STRING:
/* Like perl we only support string increment */
/* Try to work with string as a number or leave it alone */
.
.
.
}
The increment_string() function works from right to left, incrementing
any character in the range [A-Za-z0-9], if the character is Z, z, or 9,
it will roll over to A, a, or 0 respectively and 'carry-over' to the
next alphanumeric. Incrementing continues until no carry-over is
encountered.
Personally, it seems to me that there should be a decrement_string()
equivalent, but this is a messy thing to do with strings anyway.
------------------------------------------------------------------------
[2000-08-11 09:08:30] [EMAIL PROTECTED]
perhaps it´s more than I thought, try this:
echo $n='';
echo ++$n;
echo ++$n;
what happens? nothing. If someone´s going to review that magical
mechanism, he/she should document it OR improve it
------------------------------------------------------------------------
[2000-08-11 08:09:06] [EMAIL PROTECTED]
depending on POV it could be a feature request too...
------------------------------------------------------------------------
The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
http://bugs.php.net/6107
--
Edit this bug report at http://bugs.php.net/?id=6107&edit=1
