Are there any specific PHP configurations or libraries that need to be checked or installed to ensure ImageFilledRectangle functions correctly on different operating systems?

When using the ImageFilledRectangle function in PHP to draw filled rectangles on images, it is important to ensure that the GD library is installed and enabled on the server. Additionally, the PHP configuration should have the GD extension enabled to support image manipulation functions. Checking and installing the GD library and enabling the GD extension in the PHP configuration will ensure that the ImageFilledRectangle function works correctly on different operating systems. 

// Check if GD library is installed and enabled
if (!function_exists('gd_info')) {
    die('GD library is not installed/enabled on this server');
}

// Check if GD extension is enabled in PHP configuration
if (!extension_loaded('gd')) {
    die('GD extension is not enabled in PHP configuration');
}

// Your ImageFilledRectangle code here

Keywords

PHP configurations libraries ImageFilledRectangle operating systems installation

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