note 55607 added to function.imagesetpixel

I was looking for a way to actually DELETE pixels or squares or parts of an image from an image resource, and at first I thought imagesetpixel would do the trick. Unfortunately, it merely paints over that one pixel, and as far as I knew, php didn't have any native way of deleting sections out of your image - so this little method should take care of deleting rectangular parts of your pictures! function deleteRectangle(&$oldImage,$leftX,$leftY,$rightX,$rightY) { // Since php has no native way of delete parts of images // We have to divide the image into four different parts and then copy them manually to a new // image $xSize = imagesx($oldImage); $ySize = imagesy($oldImage); // Divides the image into four sections to copy $imagesection = array(); $imagesection[] = array(0,0,$leftX,$ySize); $imagesection[] = array($leftX,0,$rightX+1,$leftY); $imagesection[] = array($leftX,$rightY+1,$rightX+1,$ySize); $imagesection[] = array($rightX+1,0,$xSize,$ySize); // Create the new, copied image $newImage = imagecreatetruecolor($xSize,$ySize); // Vital for transparency imagesavealpha($newImage,true); // Fills the background a transparent color $transparentBackground = imagecolorallocatealpha($newImage,255,255,255,127); imagefill($newImage,0,0,$transparentBackground); // Copies each of the four imagesections into their respective old positions for($i = 0;$i<count($imagesection);$i++) imagecopyresampled($newImage,$oldImage, $imagesection[$i][0],$imagesection[$i][1], $imagesection[$i][0],$imagesection[$i][1], $imagesection[$i][2]-$imagesection[$i][0], $imagesection[$i][3]-$imagesection[$i][1], $imagesection[$i][2]-$imagesection[$i][0], $imagesection[$i][3]-$imagesection[$i][1]); // Alternately you can cycle through each pixel in an image and see if that pixel is an the area // but that could be more intensive imagedestroy($oldImage); // Sets the old image equal to the new, cleared image $oldImage = $newImage; } It was made with a transparent background in mind, but you could easily change that by changeing imagecreatetruecolor to imagecreate and deleting the code that deals with transparency. Hope it helps! ---- Manual Page -- http://www.php.net/manual/en/function.imagesetpixel.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+55607 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+55607&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+55607&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+55607&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+55607&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+55607&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+55607&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+55607&report=yes Search -- http://master.php.net/manage/user-notes.php