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Image Manager Componet

/ Published in: PHP
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makes a resized duplicate of an image

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  1. example: 
  2. 	$imgId = $_FILES['article_image']['name'];
  3. 	//make thumbnail
  4. 	$this->ImageManager->makeImage(WWW_ROOT.'/img/articleImages/'.$imgId, WWW_ROOT.'/img/articleThumbs/'.$imgId, 85, 110);
  5.  
  6.  
  7. <?php
  8. class ImageManagerComponent extends Object
  9. {
  10. 	var $controller; 
  11.  
  12. 	function makeImage($input, $output, $max_width, $max_height)
  13. 	{
  14. 		ob_start();
  15. 		$im = imagecreatefromjpeg($input);
  16. 		$orig_height = imagesy($im);
  17. 		$orig_width = imagesx($im);
  18. 		$ratio = ($orig_height>$orig_width) ? $max_width/$orig_width : $max_height/$orig_height;
  19. 		$new_width = $orig_width * $ratio;
  20. 		$new_height = $orig_height * $ratio;
  21. 		$new_im = imagecreatetruecolor($new_width,$new_height);
  22. 		imagecopyresampled($new_im,$im,0,0,0,0,$new_width,$new_height,$orig_width,$orig_height);
  23. 		imagejpeg($new_im);
  24. 		$image = ob_get_clean();
  25. 		$thumb_pointer = fopen($output,'w+');
  26. 		fputs($thumb_pointer,$image,strlen($image));
  27. 		fclose($thumb_pointer);
  28. 	}
  29.  
  30. 	function delete($fileName)
  31. 	{
  32. 		if (unlink($fileName))
  33. 		{
  34. 			return true;
  35. 		}
  36. 		else
  37. 		{
  38. 			return false;
  39. 		}
  40. 	}
  41. }
  42. ?>

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