Hi everyone!

I'm still learning PHP and MYSQL using windows98, MYSQL, PHP 4 in my
local hard drive.

I want to learn uploading image and resizing image in my local machine.

when I execute this code:

//setup image
$height = 200;
$width = 200;

$im = ImageCreate($width,$height);
$white = ImageCreateAllocate ($im, 255, 255, 255);
$black = ImageCreateAllocate ($im, 0, 0, 0);

//Draw on image
ImageFill($im, 0, 0, $black);
ImageLine($im, 0, 0, $width, $height, $white);
ImageString($im, 4, 50, 150, "Sales", $white);

//output image
Header ("Content-type: image/png");
ImagePng ($im);

//Clean up

I get error message: "Fatal error: Call to undefined function:
imagecreate() in D:\graphic_practise\index.php on line 15"

What did I do wrong?

any advice/ help is greatly appriciated.



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