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PHP 5 $_POST and $_GET

PHP Superglobal Arrays

A superglobal array is a built - in PHP variable that is available in any scope, Different types of information are stored in different type of global variables

  • It's useful information about the environment.
  • It's allowed to access the form data.
  • It's access the cookies.
  • It's track the session.

PHP $_GET

PHP $_GET is used to passed data using HTTP protocol. Some about the $_GET superglobal array are following below.

  • Which includes variables passed as part of URL.
  • GET method handle small amounts of data.
  • If you want to send sensitive data like password never used $_GET method.
  • $_GET associative array used for accessing the sent information by GET method.
<?php
 if(isset($_POST['na']))
{
$name = $_POST['na'];
$lname = $_POST['na1'];
echo "Your full name :" . $name." " .$lname;
}

?>
<html>
<body>
  <form action="<?php $_PHP_SELF ?>" method="GET">
  Name: <input type="text" name="name" />
  Age: <input type="text" name="age" />
  <input type="submit" />
  </form>
</body>
</html>

PHP $_POST

$_POSt is very similar to $_GET method. Some about the $_GET superglobal array are following below.

  • It's also used to collect form data.
  • $_POST method handles large amount of data.
  • The $_POST superglobal array can be used secure information like password.
<?php
 <html>
<body>

<form method="post" action="<?php echo $_SERVER['PHP_SELF'];?>">
Name: <input type="text" name="fname">
<input type="submit">
</form>

<?php
$name = $_POST['fname'];
echo $name;
?>

</body>
</html>



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