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PHP uploads images and sets transparent image watermark effects

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Release： 2016-07-25 08:51:50
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  3. $im = imagecreatefromjpeg($_file["upload"]["tmp_name"]); //Picture

  4. $watermark = imagecreatefrompng("Smiley.png"); //Watermark image Path
  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 watermarked image

  11. < p>//Use type to determine the image type
  12. //switch($_file["upload"]["type"])
  13. //case:1
  14. //Other gd library functions
  15. //imagejpeg() corresponds to jpeg
  16. //imagegif() corresponds to gif
  17. //imagepng() corresponds to png
  18. imagedestroy($im);

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php上传图片并设置透明图片水印效果
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