$pdo is undefined. You’re not declaring it inside the function, and it isn’t being passed in as an argument. You need to either pass it in (good), or define it in the global namespace and make it available to your function by placing global $pdo at the top (bad).
If the type of each of your input variables is a string and you want to sanitize them all at once, you can use: This will sanitize your $_GET and $_POST arrays. Seen here: PHP -Sanitize values of a array
I went through many articles related to this topic, such as this: Using PHP 5.5’s password_hash and password_verify function Yet, I’m unsure if I’m hashing and salting the correct way or over doing it! I want to use my own salt and then hash. Both salt and hashed password stored in the database in two … Read more
In php you can escape variables like so or like Reference here under escape character section
Native XML Extensions I prefer using one of the native XML extensions since they come bundled with PHP, are usually faster than all the 3rd party libs and give me all the control I need over the markup. DOM The DOM extension allows you to operate on XML documents through the DOM API with PHP 5. It … Read more
It maybe solve your problem, check your files access level
Each YouTube video has four generated images. They are predictably formatted as follows: The first one in the list is a full size image and others are thumbnail images. The default thumbnail image (i.e., one of 1.jpg, 2.jpg, 3.jpg) is: For the high quality version of the thumbnail use a URL similar to this: There is also a … Read more
Today, I have started to learn PHP. And, I have created my first PHP file to test different variables. You can see my file as follows. I have found the following errors when I have run this file in the browser. Notice: Undefined variable: x in /opt/lampp/htdocs/anand/php/index.php on line 19 Notice: Undefined variable: y in … Read more
Think of ob_start() as saying “Start remembering everything that would normally be outputted, but don’t quite do anything with it yet.” For example: There are two other functions you typically pair it with: ob_get_contents(), which basically gives you whatever has been “saved” to the buffer since it was turned on with ob_start(), and then ob_end_clean() or ob_flush(), which either stops saving things … Read more
Your web server will server the HTML page as is. It will only parse the HTML as best as it can. If you rename your page with a PHP extension, the web server will parse it using the PHP interpreter and that is when PHP will be interpreted. Also as Fred points out in the … Read more