Good Afternoon!
I'm having trouble executing Script 11.4 in Chapter 11. The code for Script 11.2 reads:
<?php # Script 11.2 - upload-image.php
// Check if the form has been submitted:
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
// Check for an uploaded file:
if (isset($_FILES['upload'])) {
// Validate the type. Should be JPEG or PNG.
$allowed = array ('image/pjpeg', 'image/jpeg', 'image/JPG','image/X-PNG', 'image/PNG', 'image/png', 'image/x-png');
if (in_array($_FILES['upload']['type'], $allowed)) {
// Move the file over.
if(move_uploaded_file($_FILES['upload']['tmp_name'], "../uploads/{$_FILES['upload']['name']}")) {
echo '<p><em>The file has been uploaded!</em></p>';
} // End of move IF.
else {
// Invalid type
echo '<p class="error">Please upload a JPEG or PNG image.</p>';
}
} // End of isset($_FILES['upload'] IF.
// Check for an error:
if ($_FILES['upload']['error'] > 0) {
echo '<p class="error">The file could not be uploaded because: <strong>';
// Print a message based upon the error.
switch($_FILES['upload']['error']) {
case 1:
print 'The file exceeds the upload_max_file size setting in php.ini.';
break;
case 2:
print 'The file exceeds the MAX_FILE_SIZE setting in the HTML form.';
break;
case 3:
print 'The file was only partially uploaded.';
break;
case 4:
print 'No file was uploaded.';
break;
case 6:
print 'No temporary folder was available.';
break;
case 7:
print 'Unable to write to the disk.';
break;
case 8:
print 'File upload stopped.';
break;
default:
print 'A system error occured.';
break;
} // End of error IF.
// Delete the file as if it still exists:
if (file_exists($_FILES['upload']['tmp_name']) && is_file($_FILES['upload']['tmp_name']) )
{
uplink($_FILES['upload']['tmp_name']);
}
} // End of the submitted conditional
}
}
?>
This is my Script 11.3:
function create_window (image, width, height) {
// Add some pixels to the width and height:
width = width + 10;
height = height + 10;
// If the window is already open,
// resize it to the new dimensions:
if (window.popup && !window.popup.closed) {
window.popup.resizeTo(width,height);
}
// Set the window properties
var specs = "location=no, scrollbars=no, menubars=no, toolbars=no, resizable=yes, left=0, top=0, width=" + width + ", height=" + height;
// Set the URL:
var url = "show_image.php?image=" + image;
// Create the popup window:
popup = window.open(url, "ImageWindow", specs);
popup.focus();
}
Finally, this is Script 11.4:
<?php # Script 11.4 - images.php
// This script lists the images in the uploads directory.
$dir = '../uploads'; // Define the directory to view.
$files = scandir($dir); // Read all the images into an array.
// Display each image caption as a link to the JavaScript function:
foreach ($files as $image) {
if (substr($image, 0, 1) != '.') { // Ignore anything starting with a period.
// Get the image's size in pixels:
$image_size = getimagesize ("$dir/$image");
// Make the image's name URL-safe:
$image_name = urlencode($image);
// Print the information:
echo "<li><a href=\"javascript:create_window('$image_name',$image_size[0],$image_size[1])\">$image</a></li>\n";
} // End of the IF.
} // End of the foreach loop.
?>
The problem is, when I click on any of the image links in Script 11.4, it shows a "Error 404 - File Not Found" message instead of the picture itself. It also says something about the directory being "wrong or outdated". I have not been able to fix this error, regardless of what I do.
Could you give me any pointers as to what might be wrong? Thanks!
