ID:               35061
 User updated by:  surfchen at gmail dot com
 Reported By:      surfchen at gmail dot com
 Status:           Bogus
 Bug Type:         Documentation problem
 Operating System: Redhat AS
 PHP Version:      4.4.0
 New Comment:

1)
I must write more code when I can't sure a filename(2nd parameter) will
be a empty string or a normal string.
if ($filename=='')
{
   imagegif($img);
}
else
{
   imagegif($img,$filename);
}
2)why the imagegif have 4 parameters while imagepng,imagejpg have 3?


Previous Comments:
------------------------------------------------------------------------

[2005-11-02 09:17:04] [EMAIL PROTECTED]

Third and fourth parameter of this function is silently ignored. Empty
string for the second parametr can be used to skip it but if a function
has only two parameters, there's nothing to skip and the second
parameter is used. If you just want to output the image, simply call
imagegif($img).

------------------------------------------------------------------------

[2005-11-02 09:16:20] surfchen at gmail dot com

maybe it's not just a documentation problem.

------------------------------------------------------------------------

[2005-11-02 09:01:24] [EMAIL PROTECTED]

Marking as a doc problem then.

------------------------------------------------------------------------

[2005-11-02 06:39:55] surfchen at gmail dot com

Description:
------------
1)the imagegif,imagejpg,imagepng can not be used with tow parameters
which the 2nd parameter is ''(null).but if give the function more than
2 parameters,it works.
2)imagegif can give 4 parameters while the document just says it just
have tow parameters.



Reproduce code:
---------------
<?php//incorrect.1)
$img=imagecreatefromgif('2.gif');
header("Content-type:image/gif");
imagegif($img,'');
?>
<?php//correct(with 4 parameters).2)
$img=imagecreatefromgif('2.gif');
header("Content-type:image/gif");
imagegif($img,'',55,22);
?>

Expected result:
----------------
1) should ouput correct.
2) should ouput a error because that it have 4 parameters

Actual result:
--------------
1)output a incorrect image
2)ouput correctly


------------------------------------------------------------------------


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