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PHP code to upload images and add transparent watermarks

WBOY
Release： 2016-07-25 09:03:47
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  3. $im = imagecreatefromjpeg($_file["upload"]["tmp_name"]); //You want to draw a picture of the water example
  4. $watermark = imagecreatefrompng("Smiley.png") ; //The path of the watermark image
  5. $im_x = imagesx($im);
  6. $im_y = imagesy($im);
  7. $w_x = imagesx($watermark);
  8. $w_y = imagesy($watermark);
  9. imagecopy( $im,$watermark ,$im_x-$w_x,$im_y-$w_y,0,0,$w_x,$w_y);
  10. imagejpeg($im); //You can add a path to save the image with watermark
  11. / /You can use type to determine the image type
  12. //switch($_file["upload"]["type"])
  13. //case:1
  14. //Then use different functions
  15. //imagejpeg() to correspond to jpeg
  16. / /imagegif() corresponds to gif
  17. //imagepng() corresponds to png
  18. imagedestroy($im);
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php上传图片并打上透明水印的代码
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