ID: 26821
Comment by: skissane at ics dot mq dot edu dot au
Reported By: ivo at benetech dot org
Status: Open
Bug Type: Documentation problem
Operating System: Linux / RH 7.3
PHP Version: 4.3.4
New Comment:
Vrana: your comment makes no sense. If "NANC" is converted to 0, then 0
< 0 would be FALSE, not true.
Compare these expressions:
"NANC" < 0 result TRUE
"NANC" < "0" result FALSE
0 < 0 result FALSE
So it seems it is neither converting "NANC" to an integer 0, nor 0 to a
string "0". What actually is going on? The documentation should clarify
this.
Previous Comments:
------------------------------------------------------------------------
[2004-01-07 13:20:58] ivo at benetech dot org
It also print 0 as expected.
if( (int) "NANC" < 0)
also evaluates as expected.
------------------------------------------------------------------------
[2004-01-07 05:53:18] [EMAIL PROTECTED]
"NANC" is converted to 0 for comparison. It works for me as expected.
What is printed by the code <?php echo intval("NANC"); ?> on your
system?
------------------------------------------------------------------------
[2004-01-06 18:08:12] ivo at benetech dot org
Documentation needs to be more explicit about php being strongly
typed.
http://www.php.net/manual/en/language.types.type-juggling.php
or
http://www.php.net/manual/en/language.types.string.php#language.types.string.conversion
------------------------------------------------------------------------
[2004-01-06 17:23:58] [EMAIL PROTECTED]
RTFM:
http://www.php.net/manual/en/types.comparisons.php
(never ever compare different types like that)
------------------------------------------------------------------------
[2004-01-06 16:28:47] ivo at benetech dot org
Description:
------------
The statement...
if("NANC" < 0)
...always evaluates TRUE.
Reproduce code:
---------------
if("NANC" < 0)
{
print("should not happen...but does\n");
}
else
{
print("should happen...but doesnt\n");
}
Expected result:
----------------
echoed to the console:
should happen...but doesnt
Actual result:
--------------
echoed to the console:
should not happen...but does
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=26821&edit=1
