Jump to content
Larry Ullman's Book Forums

AJugOrNot

Members
  • Content Count

    8
  • Joined

  • Last visited

Community Reputation

0 Neutral

About AJugOrNot

  • Rank
    Newbie
  1. Thanks HartleySan! That works perfectly. And no problem with the "runaround", glad you could take some of your time and help me!
  2. Just tried that one too, it goes through now but allows things like 'f -$%fff' as a valid username. If a user were to try to put that in I want it to error out and tell them what is a valid input. Here is the whole validation block: //Validate username if (empty($_POST['username'])) { $errors[] = 'Please enter your username.'; } elseif (preg_match('/[\w`\\\\]{1,12}/', $trimmed['username'])) { $username = mysqli_real_escape_string($dbc, $trimmed['username']); } else { $errors[] = 'Please only use letters, numbers, and underscore.'; } Is maybe something else wrong with my setup or in that code?
  3. Hi HartleySan, I received this error when I tried it: An error occurred in script ************** on line **: preg_match(): Compilation failed: missing terminating ] for character class at offset 12. Here is the code for that: elseif (preg_match('/[\w`\\]{1,12}/', $trimmed['username'])) { $username = mysqli_real_escape_string($dbc, $trimmed['username']); I then changed it to elseif (preg_match('/[[\w`\\]{1,12}]/', $trimmed['username'])) { $username = mysqli_real_escape_string($dbc, $trimmed['username']); (Added an extra bracket after the first backslash) and tried f-_` and it allowed it. Also tried f -11$%1111 and it worked as well. Just to be clear, I do not want to allow any other characters other than A-Za-z0-9_` and \ and to not allow spaces. Thanks again for your help.
  4. Hi, I'm trying to use a regular expression to limit user input by only allowing all capitol and lowercase letters, numbers, underscore, `, and \. I would like it to be 1-12 characters long and have no spaces. However, when I try to create it and put it into the prce.php, it still allows spaces and more than 12 characters. Here is what I am using: /[\w^\s`\\]{1,12}/ Any help would be appreciated, thank you. I am using PHP v 5.3.
  5. Hi everyone, sorry if this post doesn't have proper English, I'm really tired. So I know that php 5.5 uses some new type of encryption that is automatically a php function and is better because it is cracked slower (I think its bcrypt or something like that) I have tried looking online for the "best" way to save passwords, but every time I find a post I see another user saying that the last method just posted is easily crackable or shouldn't be used. From what I have read online, it seems the method used in the PHP and MySQL for Dynamic Web Sites book is not the most secure currently. While PHP 5.5 has the bcrypt, the hosting company I am with only allows php 5.3. What are some best practices currently in 5.3? I also have Effortless E-Commerce and I am going through that book currently. If there is an "acceptable" method in there just tell me to keep reading.
  6. That was the issue, I named the folder javascript instead of js........such a stupid mistake lol. Thanks HartleySan, got it working.
  7. I just have 1 image in the folder. The link comes up but when clicking it, nothing happens. It says that the function create_window is undefined when I try to debug in Chrome. I will try to do some more research on my javascript.
  8. Hi everyone, I am really enjoying your book Larry, thanks. My problem is I am on the page where you use the header function and javascript to display the images from the uploads folder. I have one picture and for some reason when I click it, it does nothing. Would anyone care to look at my code or give me some hints as to why it is not working? I have tried the following: Compare my code to Larry's code Used Larry's code Enabled pop-ups Moved the javascript folder to a different location (a folder above and then changing the a href to ../javascript) images.php <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Images</title> <script type="text/javascript" charset="utf-8" src="js/function.js"></script> </head> <body> <p>Click on an image to view it in a separate window.</p> <ul> <?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. ?> </ul> </body> </html> function.js //Script 11.3 - function.js 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 ot 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 pop-up window: popup = window.open(url, "ImageWindow", specs); popup.focus(); } //End of function show_image.php <?php # Script 11.5 - show_image.php // This page displays an image. $name = FALSE; // Flag variable: // Check for an image name in the URL: if (isset($_GET['image'])) { // Make sure it has an image's extension: $ext = strtolower ( substr ($_GET['image'], -4)); if (($ext == '.jpg') OR ($ext == 'jpeg') OR ($ext == '.png')) { // Full image path: $image = "../uploads/{$_GET['image']}"; // Check that the image exists and is a file: if (file_exists ($image) && (is_file($image))) { // Set the name as this image: $name = $_GET['image']; } // End of file_exists() IF. } // End of $ext IF. } // End of isset($_GET['image']) IF. // If there was a problem, use the default image: if (!$name) { $image = 'images/unavailable.png'; $name = 'unavailable.png'; } // Get the image information: $info = getimagesize($image); $fs = filesize($image); // Send the content information: header ("Content-Type: {$info['mime']}\n"); header ("Content-Disposition: inline; filename=\"$name\"\n"); header ("Content-Length: $fs\n"); // Send the file: readfile ($image); here are how to folders are set up: xamp-->htdocs-->Learning-->(all php files) xamp-->htdocs-->Learning-->javascript-->function.js xamp-->htdocs-->uploads I also created an xampp-->uploads folder, but the files do not upload there and the scripts do not see the pictures in that folder. Thanks for everyone's help.......
×
×
  • Create New...