When submitted data is sent to the "myform.php" file using POST HTTP method. You need to validate submitted data to protect your script (and thus your website and server) from malicious code.All variables passed to the current script via the HTTP POST method are stored in associative array $_POST. Let's say you display all data submitted with the form in a HTML file (like a guestbook does for example). Failure to properly validate input data is the main reason for most vulnerabilities and exploits in PHP scripts.Note that although you can provide a default filter for the entire input array there is no way to provide a flag for that filter without building the entire definition array yourself.So here is a small function that can alleviate this hassle!There are two keys to understanding why the automatic fallback works consistently in all major browsers: (unless "foo" is a recognized input type or "bar" is a recognized attribute of the input element).For each of the new input types, we present a high-level description, an overview of the syntax, a description of the main attributes, a summary of which current browsers support it, and an example you can experiment with in your browser.To ensure that the application is robust against all forms of input data, whether obtained from the user, infrastructure, external entities or database systems. This weakness leads to almost all of the major vulnerabilities in applications, such as Interpreter Injection, locale/Unicode attacks, file system attacks and buffer overflows.
Detecting attempts to find these weaknesses is a critical protection mechanism.If you want to collect floating point numbers, use a non-integer for min or step.This input type lets you collect a number (either integer or floating point). The exact value is not displayed to the user unless you use Java Script.Please send corrections and suggested improvements to [email protected] As of January 2013, Opera had the most complete support for these new input elements, followed closely by Chrome.Firefox and Safari had moderate support, and Internet Explorer had no support at all.