如何使用gd php合并两个图像

Question

I have got x, y coordinates, angle, scale, width and height of one image and that image i need to place on the other one please tell me how to do it!

   //below code, makes an image transparent and fill in color
   $img = imagecreatefrompng($this->rootFolder.'/'.$this->file);
   //Convert image to grey scale and set its contrast
    imagefilter($img, IMG_FILTER_GRAYSCALE);
    imagefilter($img, IMG_FILTER_CONTRAST, -1000);

    //make an image transparent
    $white = imagecolorallocate($img, 255, 255, 255);
    imagecolortransparent($img, $white);

     $r = 1;$g = 1;$b = 1;
    //fill respective colors in image
    imagefilter($img, IMG_FILTER_COLORIZE, $r,$g,$b);
    //save image
    imagepng($img,$this->rootFolder.'/flex_'.$colour.'_'.$imageName.'.png');
    imagedestroy($img)

//now above image has to be placed over another image provided x,y,scale,angle,width and height

please suggest!

Answer 1

you can use imagecopymerge() function to accomplish that

Check out this page: http://php.net/manual/en/function.imagecopymerge.php