imagecreatefromgif - PHP code example

PHP Function ImagecreateFromGif

php function imagecreatefromgif is an inbuilt function of GD library that will create GIF file from the input image file. This is also used to generate transparent images. If the uploaded image is already made transparent with imagecolortransparent(), then GD library will use this for making the GIF. If not, then GD will create a normal image using this function. The filename can be a URL or a local file, and the image will be saved in the same location.

Functions in php are a very useful way of organizing your code and making it more modular. They also make it easier to eliminate errors. When you break a larger program into small functions, you can easily find the source of an error when it occurs. This makes it much easier to fix the problem and continue.

When writing a function, you need to make sure it is clearly defined with the name of the function, the parentheses that contain all of the parameters and the code block in between. You also need to give the function a scope so that you can decide where it should reside in your script. A function can have a global scope or a local scope. A variable that has a global scope can be accessed from any function in your script, while a variable that has a local scope will only be accessible inside the function it is declared within.

Finally, you need to specify the data type that your function should return. If you do not do this, then you may get a fatal error when trying to execute the function. To avoid this, you can add a type declaration to the function.

imagecreatefromgif example

return false;
    }

    switch ( $mime_type ) {
        case 'image/jpeg':
            $image = imagecreatefromjpeg( $filepath );
            break;
        case 'image/png':
            $image = imagecreatefrompng( $filepath );
            break;
        case 'image/gif':
            $image = imagecreatefromgif( $filepath );
            break;
        case 'image/webp':
            $image = false;
            if ( function_exists( 'imagecreatefromwebp' ) ) {
                $image = imagecreatefromwebp( $filepath );
            }
            break;
        default:
            $image = false;
            break;
    }

    protected function getImageResource(string $path, int $imageType)
    {
        switch ($imageType) {
            case IMAGETYPE_GIF:
                if (! function_exists('imagecreatefromgif')) {
                    throw ImageException::forInvalidImageCreate(lang('Images.gifNotSupported'));
                }

                return imagecreatefromgif($path);

            case IMAGETYPE_JPEG:
                if (! function_exists('imagecreatefromjpeg')) {
                    throw ImageException::forInvalidImageCreate(lang('Images.jpgNotSupported'));
                }

                return imagecreatefromjpeg($path);

            case IMAGETYPE_PNG:
                if (! function_exists('imagecreatefrompng')) {
                    throw ImageException::forInvalidImageCreate(lang('Images.pngNotSupported'));
                }