Hi everybody.
Im currently developing an application where users can upload files and later get acess to the url.
Im now having this trouble with header Cannot modify header information – headers already sent
This is my code so far - <?php #script 10.52 - show_image.php
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$name = FALSE;//flag variable:
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//check for an image in the URL:
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if (isset($_GET['image'])){
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//Full image path:
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$image = "c://xampp/uploads/{$_GET['image']}";
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//check that the image exists and is a a file:
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if(file_exists ($image)&& (is_file($image))){
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//make sure it has and image extension
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$ext = strtolower (substr ($_GET['image'], -4));
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if (($ext=='.jpg')OR ($ext=='jpeg')OR( $ext== 'gif') OR ($ext=='pdf') OR ($ext == 'txt')) {
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//Set the name as this image:
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$name = $_GET['image'];
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}//End of $ext IF.
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}//End of file_exists() IF.
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}//end of isset ($_GET['image'])IF.
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//if there was a problem, use the default image:
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if (!$name){
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$image = 'images/unvaliable.png';
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$name = 'unvailable.png';}
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//Get the image information:
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$info = getimagesize($image);
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$fs = filesize($image);
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//send the content information:
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header("Content-Type: " . $file['mime_type']);
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print($image.$file['name']);
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//Send the file:
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//readfile ($image);
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?>
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</body>
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</html>
And this one to display the images - <script language="javascript">
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<!--//hide from old browsers.
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//Make a pop up window function:
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function create_window (image, width, height){
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//add some pixels to the width and height:
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width = width + 10;
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height = height + 10;
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//if the window is already open,
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//resize it to the new dimensions;
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if (window.popup && !window.popup.closed) {
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window.popup.resizeTo(widht, height);
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}//Set the window properties
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var specs = "location=no,
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scrollbars=no, menubars=no,
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toolbars=no, resizable=yes, left=0, top=0, width="+ width +", height="+ height;
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//Set the URL:
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var url = "show_image.php?image="+ image;
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//create the popup window:
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popup = window.open(url,"imagewindow", specs);
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popup.focus();
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}//end of function
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//--></script>
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</head>
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<body>
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<p>click on and image to view it in a separate window.</p>
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<table align="center"
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cellpadding="5" cellspacing="5" border="1">
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<tr>
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<td align="center"><b>image name</b></td>
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<td align="center"><b>image size</b></td>
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</tr>
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<?php #script 10.4 - images.php
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// this script lists the images in the upload directory
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$dir = 'c://xampp/uploads';//define the directory to view
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$files = scandir($dir);//Read all the images into an array.
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//display each image caption as a link to the javascript function:
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foreach ($files as $image){
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if(substr($image,0 ,1)!='.'){//ignore anything starting with a period
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//get the image's size in pixels
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$image_size = getimagesize("$dir/$image");
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//calculate the image's size in kilobytes:
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$file_size = round (( filesize ("$dir/$image"))/1024). "kb";
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//make the image's name url -safe:
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$image= urlencode($image);
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//print the information:
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echo "\t<tr>\t\t<td><a href=\"show_image.php?image=$image\">$image</a></td>\t\t<td>$file_size</td>\t</tr>\n";
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}//End of the IF.
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}//End of foreach loop
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?>
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</table>
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-
-
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</body>
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</html>
Any help would be great
Thanks
2  2662  Atli 5,058
Recognized Expert Expert
Hey.
There are a few problems there you need to look into. - Line #27. You use a variable $file, which I don't see you create anywhere. What is that supposed to be?
- You say you get a "headers already sent" error. What is printed before that error? - There must be something, or you would not be getting the error. - It's best to post all the errors, and whole error messages, not just the highlights. (All that info is printed for a reason :])
- Your show_image.php code is trailed by HTML tags, which it should not. - The file represents and image, and adding HTML tags to the end of an image may corrupt it, causing browsers not to display it properly.
Hi thanks for the help! I solved the problem
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