[SOLVED] Call to undefined function imagecreatefromjpeg()

[jordanwb]

I'm trying to use the class given http://www.white-hat-web-design.co.uk/articles/php-image-resizing.php to resize a picture. But when I call the load function I get the error:

 

Fatal error: Call to undefined function imagecreatefromjpeg() in /var/www/photos/system/photo_resize.php on line 31

 

Now I think I have to include some module, but I don't know what to do regarding that.

[DarkWater]

You don't have GD enabled.  If you're using Ubuntu, you need to do:

 

sudo apt-get install php5-gd

 

If you're using Windows, check your PHP.ini for the extension lines and find GD, uncomment it, and restart Apache.

[TransmogriBenno]

You need the GD libraries, which are installed in various ways depending on your hosting environment. I compile them in.

[jordanwb]

Thanks DarkWater.

[TransmogriBenno]

Perhaps.. the installer script for the package will probably do it for you, though.

[DarkWater]

sudo apt-get install php5-gd

sudo /etc/init.d/apache2 restart

php5 -m | grep 'gd'

 

But now, there's a catch.  Ubuntu doesn't use the bundled GD library, they actually use the system's GD library, which lacks the imagerotate and imagefilter (and some other) functions.  If you need them, you need to change the package and reconfigure it which can take a good hour or hour and a half because it's a HUGE package.  If you need those functions, send me a PM.

[jordanwb]

Well all I did was install it and restart apache and it works just fine for me.

[DarkWater]

Yeah.  I know.  But you won't have imagerotate or imagefilter and some other functions, trust me.  If you ever need them, contact me.