How to Fix JpGraph Error 25128: The function imageantialias() is not available in your PHP installation.

This error message shown up when I tried to draw chart using JpGraph:

To fix the problem, edit file gd_image.inc.php inside JpGraph folder, and disable the line start with JpGraphError::RaiseL(25128); in function SetAntiAliasing:


function SetAntiAliasing($aFlg=true) {
$this->use_anti_aliasing = $aFlg;
if( function_exists('imageantialias') ) {
imageantialias($this->img,$aFlg);
}
else {
//JpGraphError::RaiseL(25128);//('The function imageantialias() is not available in your PHP installation. Use the GD version that comes with PHP and not the standalone version.')
}
}

24 thoughts on “How to Fix JpGraph Error 25128: The function imageantialias() is not available in your PHP installation.

  1. ¡Muchas gracias hermano! ¡Me has librado de dolores de cabeza!

    translating …

    Thank you very much brother! I got rid of headaches!

  2. I downloaded and installed jpgraph. But I could not find a a php module file named jpgraph_matrix.php. So am not able to generate matrix plot. Could you tell me where can I get that file?

  3. Thanks, but the file jpgraph_matrix.php is empty.May I know why is like that? (or is there any method to download the file?)

  4. Very thankful for providing the file.
    Issue regarding the required file is solved. However I couldn’t succeed in generating output, but getting ann error saying The image “http://…” cannot be displayed because it contains errors. The error message is displayed in a dark background in browser.

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