Unable to use GD library

[resmi318]

Hi,

I wanted to draw some bar charts using php. I have enabled the line
extension=php_g d2.dll in php.ini.
Still not working.
Should I include any path at the top of the script.
What could be the problem?
Pls help

Thanks
Resmi318

[kovik]

What part of it isn't working?

Is it in your phpinfo()?
Does it tell you that GD functions don't exist?

[resmi318]

What part of it isn't working?

Is it in your phpinfo()?
Does it tell you that GD functions don't exist?

Hi,

It didnt tell GD functions don't exist. When I run the script it is just showing a blank page.

Resmi318

[kovik]

And what "script" are you running?

[Motoma]

Please take a look at the first post in this forum. It describes a method for receiving verbose error messages from PHP where you would normally get a black page.

Post back the error message, as well as the relevant code. Believe me, as hard as it is for you to debug your problem, it is even more difficult for us to do so if we have no information to work with.

[kovik]

Okay, I don't want everyone PMing me for help. That's what the board is for. I have not read the script that you have sent me.

However, I will give you a simple script to test if GD is, in fact, working.

[code=php]$image = imagecreatetrue color(32, 32);
imagefilledrect angle($image, 0, 0, 32, 32, imagecolorexact alpha($image, 0, 0, 0, 0));
header('Content-Type: image/png');
imagepng($image );[/code]

You should get a 32x32 black box.

[Motoma]

Okay, I don't want everyone PMing me for help. That's what the board is for. I have not read the script that you have sent me.

However, I will give you a simple script to test if GD is, in fact, working.

[code=php]$image = imagecreatetrue color(32, 32);
imagefilledrect angle($image, 0, 0, 32, 32, imagecolorexact alpha($image, 0, 0, 0, 0));
header('Content-Type: image/png');
imagepng($image );[/code]

You should get a 32x32 black box.

An easier test would be a simple call to gd_info().
But before we go test every single little thing that may be causing this error, how about we see if the OP gets any error messages when the debugging is turned on.

[Motoma]

READ FIRST: Turn on PHP Debugging Messages

[kovik]

An easier test would be a simple call to gd_info().
But before we go test every single little thing that may be causing this error, how about we see if the OP gets any error messages when the debugging is turned on.

I was just responding to his PM. It's bad to assume your code is correct and blame other things. gd_info() is a much quicker solution. No idea why it didn't come to mind. Probably because the code he PMed to me was attempted to display an image, so I was thinking in the wrong context.

[resmi318]

I was just responding to his PM. It's bad to assume your code is correct and blame other things. gd_info() is a much quicker solution. No idea why it didn't come to mind. Probably because the code he PMed to me was attempted to display an image, so I was thinking in the wrong context.

Hi,

I got the following error while I ran the script volectricity send me.

Fatal error: Call to undefined function: imagecreatetrue color()

Does that mean gd is not enabled or not present with php in my system.

But In php.ini file I saw gd library included ie the line
"extension=php_ gd2.dll"

Thanks
Resmi318

[kovik]

It means that GD is not enabled. Are you sure that php_gd2.dll is in the correct dll path?

[nathj]

Hi Everyone,

I do not wish to hijack this post though I am aware that it may seem like I am. It's just that I need help with the exact same thing. I know that my gd2 stuff is enabled as phpInfo() tells me so (it says Configure Command cscript /nologo configure.js "--enable-snapshot-build" "--with-gd=shared"). Also gd_info() shows me that stuff isd enabled:
[CODE=php]
$array = gd_info();
foreach ($array as $key => $val)
{
if ($key != "GD Version") {
if ($val == true || $val == false) {
if ($val == true) {
$val = "Enabled";
}
elseif ($val == false)
{
$val = "Disabled";
}
}
}

echo "$key: $val <br />";
[/CODE]

This returns :

GD Version: bundled (2.0.34 compatible) 
FreeType Support: Enabled 
FreeType Linkage: Enabled 
T1Lib Support: Enabled 
GIF Read Support: Enabled 
GIF Create Support: Enabled 
JPG Support: Enabled 
PNG Support: Enabled 
WBMP Support: Enabled 
XPM Support: Disabled 
XBM Support: Enabled 
JIS-mapped Japanese Font Support: Disabled

However, the code I have, which draws an image to be used as a security questions (slightly obscured text) works on a host I have for another project but I cannot get it to work locally. I need to have it working locally for testing purposes before I can move to the next stage of development.
Any ideas on what may be missing or incorrectly set up with the php_gd2 dll?
nathj

PS sorry for the hijack, it just seemed better than posting another thread about the same thing.

[ak1dnar]

Hi,

I got the following error while I ran the script volectricity send me.

Fatal error: Call to undefined function: imagecreatetrue color()

Does that mean gd is not enabled or not present with php in my system.

But In php.ini file I saw gd library included ie the line
"extension=php_ gd2.dll"

Thanks
Resmi318

Do you mean you saw that, is it commented yet?

;extension=php_fdf.dll
;extension=php_filepro.dll
[b] extension=php_gd2.dll[/b]
;extension=php_gettext.dll

Have you located this php_gd2.dll under ext dir.

[resmi318]

It means that GD is not enabled. Are you sure that php_gd2.dll is in the correct dll path?

Hi,

Actuallly I am not allowed to make changes in php.ini file. I have asked the administrator and he had taken the comment ";" infront of the statement
extension=php_g d2.dll and restarted the system. Still its not working.
I am using an unix machine .

Thanks
Resmi318

[Motoma]

Hi,

Actuallly I am not allowed to make changes in php.ini file. I have asked the administrator and he had taken the comment ";" infront of the statement
extension=php_g d2.dll and restarted the system. Still its not working.
I am using an unix machine .

Thanks
Resmi318

If you are on a UNIX machine, then you will not be using a dll, rather the extension file should end with .so.