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PHP image watermarking and uploaded image watermarking

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2016-07-25 09:07:401188browse
  1. //Upload file type list
  2. $uptypes=array(
  3. 'image/jpg',
  4. 'image/jpeg',
  5. 'image/png',
  6. 'image/pjpeg',
  7. 'image/gif',
  8. 'image/bmp',
  9. 'image/x-png'
  10. );
  11. $max_file_size=2000000; //Upload file size limit, unit BYTE
  12. $destination_folder="uploadimg/"; / /Upload file path
  13. $watermark=1; //Whether to attach a watermark (1 is watermarked, others are not watermarked);
  14. $watertype=1; //Watermark type (1 is text, 2 is picture)
  15. $waterposition =1; //Watermark position (1 is the lower left corner, 2 is the lower right corner
  16. , 3 is the upper left corner, 4 is the upper right corner, 5 is in the center);
  17. $waterstring="
  18. http://www.xplore.cn/"; //Watermark string
  19. $waterimg="xplore.gif"; //Watermark image
  20. $imgpreview=1 ; //Whether to generate a preview image (1 means generate, others do not generate);
  21. $imgpreviewsize=1/2; //Thumbnail ratio
  22. ?>
  23. ZwelL image uploader
  24. method ="post" name="upform">
  25. Upload file:
  26. The file types allowed to be uploaded are:
  27. if ($_SERVER['REQUEST_METHOD'] == 'POST ')
  28. {
  29. if (!is_uploaded_file($_FILES["upfile"]
  30. [tmp_name]))
  31. //Whether the file exists
  32. {
  33. echo "The picture does not exist!";
  34. exit;
  35. }
  36. $file = $ _FILES["upfile"];
  37. if($max_file_size <$file["size"])
  38. //Check the file size
  39. {
  40. echo "The file is too big!";
  41. exit;
  42. }
  43. if(!in_array( $file["type"], $uptypes))
  44. //Check file type
  45. {
  46. echo "File type does not match!".$file["type"];
  47. exit;
  48. }
  49. if(!file_exists($destination_folder ))
  50. {
  51. mkdir($destination_folder);
  52. }
  53. $filename=$file["tmp_name"];
  54. $image_size = getimagesize($filename);
  55. $pinfo=pathinfo($file["name"]);
  56. $ftype=$pinfo['extension'];
  57. $destination = $destination_folder.
  58. time().".".$ftype;
  59. if (file_exists($destination) &&
  60. $overwrite != true)
  61. {
  62. echo "The file with the same name already exists";
  63. exit;
  64. }
  65. if(!move_uploaded_file ($filename,
  66. $destination))
  67. {
  68. echo "Error moving file";
  69. exit;
  70. }
  71. $pinfo=pathinfo($ destination);
  72. $fname=$pinfo[basename];
  73. echo " has been successfully uploaded

  74. File name:
  75. ".$ destination_folder.
  76. $fname."
    ";
  77. echo " width:".$image_size[0];
  78. echo " length:".$image_size[1];
  79. echo "
  80. if($watermark==1)
  81. {
  82. $iinfo=getimagesize($destination,$iinfo);
  83. $nimage=imagecreatetruecolor($image_size[ 0]
  84. ,$image_size[1]);
  85. $white=imagecolorallocate($nimage,255,255,255);
  86. $black=imagecolorallocate($nimage,0,0,0);
  87. $red=imagecolorallocate($nimage,255, 0,0);
  88. imagefill($nimage,0,0,$white);
  89. switch ($iinfo[2])
  90. {
  91. case 1:
  92. $simage =imagecreatefromgif($destination);
  93. break;
  94. case 2 :
  95. $simage =imagecreatefromjpeg($destination);
  96. break;
  97. case 3:
  98. $simage =imagecreatefrompng($destination);
  99. break;
  100. case 6:
  101. $simage =imagecreatefromwbmp($destination);
  102. break;
  103. default :
  104. die("Unsupported file type");
  105. exit;
  106. }
  107. imagecopy($nimage,$simage,0,0,0,0,
  108. $image_size[0],$image_size[1]);
  109. imagefilledrectangle($nimage,1,
  110. $image_size[1]-15,80,$image_size[1],$white);
  111. switch($watertype)
  112. {
  113. case 1: //Add watermark string
  114. imagestring($ nimage,2,3,$image_size[1]-15,
  115. $waterstring,$black);
  116. break;
  117. case 2: //Add watermark image
  118. $simage1 =imagecreatefromgif("xplore.gif");
  119. imagecopy( $nimage,$simage1,0,0,0,0,85,15);
  120. imagedestroy($simage1);
  121. break;
  122. }
  123. switch ($iinfo[2])
  124. {
  125. case 1:
  126. //imagegif ($nimage, $destination);
  127. imagejpeg($nimage, $destination);
  128. break;
  129. case 2:
  130. imagejpeg($nimage, $destination);
  131. break;
  132. case 3:
  133. imagepng($nimage, $destination );
  134. break;
  135. case 6:
  136. imagewbmp($nimage, $destination);
  137. //imagejpeg($nimage, $destination);
  138. break;
  139. }
  140. //Overwrite the original uploaded file
  141. imagedestroy($nimage);
  142. imagedestroy($simage);
  143. }
  144. if($imgpreview==1)
  145. {
  146. echo "
    Image preview:
    ";
  147. echo "height=".($image_size[1]*$imgpreviewsize);"
  148. echo " alt="Image preview:rFile name:".
  149. $destination."rUpload time:" />" ;
  150. }
  151. }
  152. ?>
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