upload-image-resizer

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<?php
//function to resize / upload a photo save it to a dir
function upload ($tempfile,$dir,$file,$height,$width){
    //$tempfile = filename generated by the server when uploading a file
    //$dir = directory with the final location
    //$file = new filename
    //$height / $width explain enough i think
    
    //check if the file is realy uploaded

    if(!is_uploaded_file($tempfile)){
        $error[0] = false;
        $error[1] = -1;
        $error[2] = 'file is not uploaded';
    return $error;
    }
else{
    //get the dimensions of the file
    if(!$dim = getimagesize($tempfile)){
        $error[0] = false;
        $error[1] = -2;
        $error[2] = 'No image file';
    return $error;
    }
else{
    
    //0 = width
    //1 = height
    //2 = type
    //we want to calculte if the bigger then the maxsize if not keep it easy --> upload it

    if($dim[0] < $width && $dim[1] < $height){
        //move upload file
        if(!file_exists($dir.$file)){
        if(@move_uploaded_file($tempfile,$dir.$file)){
        $error[0] = true;
        $error[1] = 1;
        $error[2] = 'File uploaded';
        return $error;
        }
else{
        $error[0] = false;
        $error[1] = -3;
        $error[2] = 'Error during move upload file';
        return $error;    
        }
        }
else{
        $error[0] = false;
        $error[1] = -4;
        $error[2] = 'File allready exsits';
        return $error;    
        }        
    }
else{
        //we have to resize :(
        if($dim[0] > $dim[1]){
            $prop = $width / $dim[0];
            $dims[0] = $width;
            $dims[1] = round($dim[1] * $prop);
        }
else{
            $prop = $height / $dim[1];
            $dims[1] = $height;
            $dims[0] = round($dim[0] * $prop);
        }

        //we know the new size
        if($dim[2] == 2){
        if(!$mimage = @imagecreatefromjpeg($tempfile)){
        $error[0] = false;
        $error[1] = -4;
        $error[2] = 'Error';
        return $error;
        }
           }

           //we know the new size
        if($dim[2] == 1){
        if(!$mimage = @imagecreatefromgif($tempfile)){
        $error[0] = false;
        $error[1] = -4;
        $error[2] = 'Error';
        return $error;
        }
           }

           //we know the new size
        if($dim[2] == 3){
        if(!$mimage = @imagecreatefrompng($tempfile)){
        $error[0] = false;
        $error[1] = -4;
        $error[2] = 'Error';
        return $error;
        }
           }

           $im = @imagecreatetruecolor($dims[0],$dims[1]);
           @
imagecopyresampled($im, $mimage, 0, 0, 0, 0, $dims[0], $dims[1], $dim[0], $dim[1]);
           
         if(!file_exists($dir.$file)){
           if($dim[2] == 2){
        if(!@imagejpeg($im,$dir.$file,100)){
        $error[0] = false;
        $error[1] = -5;
        $error[2] = 'Imagecreate error';
        return $error;
        }
else{
        $error[0] = true;
        $error[1] = 2;
        $error[2] = 'Resized';
        return $error;    
        }    
        }
    
        if($dim[2] == 1){
        if(!@imagegif($im,$dir.$file)){
        $error[0] = false;
        $error[1] = -5;
        $error[2] = 'Imagecreate error';
        return $error;
        }
else{
        $error[0] = true;
        $error[1] = 2;
        $error[2] = 'Resized';
        return $error;    
        }    
        }

        
        if($dim[2] == 3){
        if(!@imagepng($im,$dir.$file)){
        $error[0] = false;
        $error[1] = -5;
        $error[2] = 'Imagecreate error';
        return $error;
        }
else{
        $error[0] = true;
        $error[1] = 2;
        $error[2] = 'Resized';
        return $error;      
        }    
           }
        }
else{
        $error[0] = false;
        $error[1] = -4;
        $error[2] = 'File allready exsits';
        return $error;        
        }

        imagedestroy($im);
        imagedestroy($mimage);  
           //end resize
        }

    }
    }
}

?>

 
 

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