Fixes the image's rotation automatically.

autoImageRotate.php

/**
 * Fixes the rotation
 * of an image
 * (with Imagick)
 */
function autoImageRotate($img) { 
      
    if(!$img) {
      
        return false;
    }
    
    $image = new Imagick($img); 
    
    $orientation = $image->getImageOrientation(); 

    switch($orientation) { 
    
        case 3: 
            $image->rotateimage("#000", 180); // 180 degrees 
        break; 

        case 6: 
            $image->rotateimage("#000", 90); // 90 degrees CW 
        break; 

        case 8: 
            $image->rotateimage("#000", -90); // 90 degrees CCW 
        break; 
    } 

    $image->setImageOrientation(1); 
    
    return $image;
}