advanced code snippet search

Posted By

jretamal on 11/13/11


Tagged

resize


Versions (?)

Resize Image

 / Published in: PHP
 
Expand | Embed | Plain Text 
  1. <?php
  2. 	/*
  3. 	Filename: example.php
  4. 	*/
  5.  
  6. 	<img src='photo.php?img=folder/image.jpg&w=320&h=240' />
  7. ?>
  8.  
  9. <?php
  10. 	/*
  11. 	Filename: photo.php
  12. 	*/
  13.  
  14. 	header('Content-Type: image/jpeg');
  15. 	include('SimpleImage.php');
  16.  
  17. 	$image = new SimpleImage();
  18. 	$image->load($_GET['img']);
  19. 	$image->resize($_GET['w'],$_GET['h']);
  20. 	$img= $image->output();
  21. ?>
  22.  
  23.  
  24. <?php
  25. 	/*
  26. 	Filename: SimpleImage.php
  27. 	*/
  28.  
  29. 	class SimpleImage {
  30.  
  31. 	   var $image;
  32. 	   var $image_type;
  33.  
  34. 	   function load($filename) {
  35.  
  36. 	      $image_info = getimagesize($filename);
  37. 	      $this->image_type = $image_info[2];
  38. 	      if( $this->image_type == IMAGETYPE_JPEG ) {
  39.  
  40. 	         $this->image = imagecreatefromjpeg($filename);
  41. 	      } elseif( $this->image_type == IMAGETYPE_GIF ) {
  42.  
  43. 	         $this->image = imagecreatefromgif($filename);
  44. 	      } elseif( $this->image_type == IMAGETYPE_PNG ) {
  45.  
  46. 	         $this->image = imagecreatefrompng($filename);
  47. 	      }
  48. 	   }
  49. 	   function save($filename, $image_type=IMAGETYPE_JPEG, $compression=75, $permissions=null) {
  50.  
  51. 	      if( $image_type == IMAGETYPE_JPEG ) {
  52. 	         imagejpeg($this->image,$filename,$compression);
  53. 	      } elseif( $image_type == IMAGETYPE_GIF ) {
  54.  
  55. 	         imagegif($this->image,$filename);
  56. 	      } elseif( $image_type == IMAGETYPE_PNG ) {
  57.  
  58. 	         imagepng($this->image,$filename);
  59. 	      }
  60. 	      if( $permissions != null) {
  61.  
  62. 	         chmod($filename,$permissions);
  63. 	      }
  64. 	   }
  65. 	   function output($image_type=IMAGETYPE_JPEG) {
  66.  
  67. 	      if( $image_type == IMAGETYPE_JPEG ) {
  68. 	         imagejpeg($this->image);
  69. 	      } elseif( $image_type == IMAGETYPE_GIF ) {
  70.  
  71. 	         imagegif($this->image);
  72. 	      } elseif( $image_type == IMAGETYPE_PNG ) {
  73.  
  74. 	         imagepng($this->image);
  75. 	      }
  76. 	   }
  77. 	   function getWidth() {
  78.  
  79. 	      return imagesx($this->image);
  80. 	   }
  81. 	   function getHeight() {
  82.  
  83. 	      return imagesy($this->image);
  84. 	   }
  85. 	   function resizeToHeight($height) {
  86.  
  87. 	      $ratio = $height / $this->getHeight();
  88. 	      $width = $this->getWidth() * $ratio;
  89. 	      $this->resize($width,$height);
  90. 	   }
  91.  
  92. 	   function resizeToWidth($width) {
  93. 	      $ratio = $width / $this->getWidth();
  94. 	      $height = $this->getheight() * $ratio;
  95. 	      $this->resize($width,$height);
  96. 	   }
  97.  
  98. 	   function scale($scale) {
  99. 	      $width = $this->getWidth() * $scale/100;
  100. 	      $height = $this->getheight() * $scale/100;
  101. 	      $this->resize($width,$height);
  102. 	   }
  103.  
  104. 	   function resize($width,$height) {
  105. 	      $new_image = imagecreatetruecolor($width, $height);
  106. 	      imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight());
  107. 	      $this->image = $new_image;
  108. 	   }      
  109.  
  110. 	}
  111. ?>

Report this snippet  

You need to login to post a comment.