Posted By

brandonio21 on 09/09/09


Tagged

php gif save thumbnails create


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brandonio21
heinz1959


PHP Create Thumbnails [GIF]


 / Published in: PHP
 

This code is not made by me : But it was used for one of my projects. This code scans for all gif files in a directory and creates a 100x100 thumbnail and moves it into a specified directory.

:.INCLUDES A DATA TEXT CODE WHICH PUTS THE NAMES OF ALL FILES IN THAT DIRECTORY INTO A TEXT FILE, WHICH IS SAVED AS data.txt.:

  1. <?php
  2. function createThumbs( $pathToImages, $pathToThumbs, $thumbWidth )
  3. {
  4. // open the directory
  5.  
  6. $dir = opendir( $pathToImages );
  7.  
  8. // loop through it, looking for any/all GIF files:
  9. while (false !== ($fname = readdir( $dir ))) {
  10. // parse path for the extension
  11. $info = pathinfo($pathToImages . $fname);
  12. // continue only if this is a GIF image
  13. if ( strtolower($info['extension']) == 'gif' )
  14. {
  15. //echo "Creating thumbnail for {$fname} <br />";
  16.  
  17. // load image and get image size
  18. $img = imagecreatefromjpeg( "{$pathToImages}{$fname}" );
  19. $width = imagesx( $img );
  20. $height = imagesy( $img );
  21.  
  22. // calculate thumbnail size
  23. $new_width = $thumbWidth;
  24. $new_height = floor( $height * ( $thumbWidth / $width ) );
  25.  
  26. // create a new temporary image
  27. $tmp_img = imagecreatetruecolor( $new_width, $new_height );
  28.  
  29. // copy and resize old image into new image
  30. imagecopyresized( $tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height );
  31.  
  32. // save thumbnail into a file
  33. imagegif( $tmp_img, "{$pathToThumbs}{$fname}" );
  34. //Data Text Save [OPTIONAL]
  35. //$myFile = "data.txt";
  36. //$fh = fopen($myFile, 'a') or die("can't open file");
  37. //$stringData = $fname."\n";
  38. //fwrite($fh, $stringData);
  39.  
  40. //fclose($fh);
  41. }
  42. }
  43.  
  44. // close the directory
  45. closedir( $dir );
  46. }
  47. ?>

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