![]() $query = mysqli_query($mysqli, "select * from `products` where userid='$id'") Īnd yes, as you speculated in a comment, you would have to do these in each file unless you rework things so as to make them happen automatically. $query=mysqli_query($mysqli,"select * from `products` where userid='$id'") Ĭould become something like $id = mysqli_real_escape_string($mysqli, $_GET) File handling is something that you will need to do very often as a PHP developer. I'll show you how to create, read, write, and delete files in PHP by using the built-in file handling functions. So on Stack Overflow, this question would be a duplicate of both How can I prevent SQL injection in PHP? and How to prevent XSS with HTML/PHP? Read Time: 8 min PHP In this tutorial, we are going to learn file handling in PHP. Your code is vulnerable to both SQL injection and HTML injection. These are as follows:ģ php scripts do the work adding/updating and deleting information from the table (add.php, update.php and delete.php).Īny suggestions and guidance would be greatly appreciated.īonus: For some reason there is a significant delay in the table being updated? Not sure why this is? ![]() This is accompanied by another page that acts as an edit form for rows submitted forming part of the table (edit.php). ![]() I have a standard form page which submits the data to the table (testing.php). I have the following code which is working fine, however I am concerned around the security of this code and considering I am relatively new to php I was wondering whether the below code is secure?
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