lixlpixel php code snippets | image handling


this little script resizes your uploaded image on the fly and saves it as thumbnail.

 

 respects aspect ratio and doesn't distort your image

 

 <?php

 

 if(isset($_POST['Submit']))

 

 {

     $size = 150; // the thumbnail height

 

     $filedir = 'pics/'; // the directory for the original image

     $thumbdir = 'pics/'; // the directory for the thumbnail image

     $prefix = 'small_'; // the prefix to be added to the original name

 

     $maxfile = '2000000';

     $mode = '0666';

     

     $userfile_name = $_FILES['image']['name'];

     $userfile_tmp = $_FILES['image']['tmp_name'];

     $userfile_size = $_FILES['image']['size'];

     $userfile_type = $_FILES['image']['type'];

     

     if (isset($_FILES['image']['name'])) 

     {

         $prod_img = $filedir.$userfile_name;

 

         $prod_img_thumb = $thumbdir.$prefix.$userfile_name;

         move_uploaded_file($userfile_tmp, $prod_img);

         chmod ($prod_img, octdec($mode));

         

         $sizes = getimagesize($prod_img);

 

         $aspect_ratio = $sizes[1]/$sizes[0]; 

 

         if ($sizes[1] <= $size)

         {

             $new_width = $sizes[0];

             $new_height = $sizes[1];

         }else{

             $new_height = $size;

             $new_width = abs($new_height/$aspect_ratio);

         }

 

         $destimg=ImageCreateTrueColor($new_width,$new_height) or die('Problem In Creating image');

         $srcimg=ImageCreateFromJPEG($prod_img) or die('Problem In opening Source Image');

         ImageCopyResized($destimg,$srcimg,0,0,0,0,$new_width,$new_height,ImageSX($srcimg),ImageSY($srcimg)) or die('Problem In resizing');

         ImageJPEG($destimg,$prod_img_thumb,90) or die('Problem In saving');

         imagedestroy($destimg);

     }

 

     echo '

     <a href="'.$prod_img.'">

         <img src="'.$prod_img_thumb.'" width="'.$new_width.'" heigt="'.$new_height.'">

     </a>';

 

 }else{

 

     echo '

     <form method="POST" action="'.$_SERVER['PHP_SELF'].'" enctype="multipart/form-data">

     <input type="file" name="image"><p>

     <input type="Submit" name="Submit" value="Submit">

     </form>';

 }

 

 ?>