![]() To prevent detection and filtering, POST spammers like to convert, encode, and obfuscate their code, which can dramatically increase overall request size. ![]() Likewise for other forms or scripts that utilize Ajax - even static HTML sites with absolute zero post-handling are repeatedly probed with malevolent POST requests.Īs we’ll see a bit later in the article, illicit POST requests typically include large amounts of data. ![]() For example, if you have a contact form on your site, chances are good that it’s being bombarded with copious volumes of nasty POST spam. So perpetrators can run scripts that make endless POST requests to unsuspecting sites 24 hours a day, 7 days a week, 365 days a year. ![]() The problem is that, on a typical server, there are no restrictions on POST requests. Such is perfectly normal and expected part of how the Web works. But whenever you leave a comment, tweet something, or share on Facebook, the browser is sending your content, along with other data, to the server as a POST request. To illustrate, normal surfing around the Web involves your browser making series of GET requests for all the resources required for each web page. Instead of getting some resource or file from the server, data is being posted or sent to it. POST requests are sort of the opposite of GET requests. Adding another form only requires an extra entry in the array and switch statements.Whether you like it or not, there are scripts and bots out there hammering away at your sites with endless HTTP “POST” requests. This code is good for when you have distinct forms on a page. Remember also that using as in index will cause a sequential numeric array to be created once the data is posted, so sometimes it's better to define your indexes explicitly.įor a page with multiple forms here is one way of processing the different POST values that you may receive. This is invaluable when you want to link various posted form data to other hashes on the server side, when you need to store posted data in separate "compartment" arrays or when you want to link your POSTed data into different record handlers in various Frameworks. With the first example you'd have to do string parsing / regexes to get the correct values out so they can be married with other data in your app. I've seem innumerable projects that jump through extra & un-needed processing hoops to decode variables when PHP does it all for you: One feature of PHP's processing of POST and GET variables is that it automatically decodes indexed form variable names. ![]() Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Predefined Attributes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search ![]()
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