What are “GET” and “POST”?

GET: we are submitting a form to login.php, when we do submit or similar action, values are sent through visible query string (notice ./login.php?username=…&password=… as URL when executing the script login.php) and is retrieved by login.php by $_GET['username'] and $_GET['password'].

POST: we are submitting a form to login.php, when we do submit or similar action, values are sent through invisible standard input (notice ./login.php) and is retrieved by login.php by $_POST['username'] and $_POST['password'].

POST method data is sent by standard input (nothing shown in URL when posting while in GET method data is sent through query string.



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  • PHP HTTP Functionsob_deflatehandler — Deflate output handler ob_etaghandler — ETag output handler ob_inflatehandler — Inflate output handler http_parse_cookie — Parse HTTP cookie http_parse_headers — Parse HTTP headers http_parse_message — P… Read More
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  • PHP Zip File Functionszip_close — Close a ZIP file archive zip_entry_close — Close a directory entry zip_entry_compressedsize — Retrieve the compressed size of a directory entry zip_entry_compressionmethod — Retrieve the compression meth… Read More
  • Including and Requiring PHP FilesTo make your code more readable, you can place your functions in a separate file. Many PHP add-ons that you download off the Internet contain functions already placed into files that you simply include in your PHP program… Read More
  • Creating ArraysPHP provides the array( ) language construct that creates arrays. The following examples show how arrays of integers and strings can be constructed and assigned to variables for later use: $numbers = array(5, 4, 3, 2, 1);… Read More
  • File Manipulation11.3. File Manipulation There may be times when you don't want to store information in a database and may want to work directly with a file instead. An example is a logfile that tracks when your application can't co… Read More
  • PHP Configuration DirectivesAlthough the focus of this book is application security, there are a few configuration directives with which any security-conscious developer should be familiar. The configuration of PHP can affect the behavior of the cod… Read More
  • Showing the Browser and IP AddressHere is a simple page that prints out the browser string and the IP address of the HTTP request. Create a file with the following content in your web directory, name it something like example.php3, and load it in your bro… Read More
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