The PHP $_REQUEST is a PHP superglobal variable that is used to collect the data after submitting an HTML form. The $_REQUEST superglobal is an associative array which also contains the contents of $_GET, $_POST, and $_COOKIE superglobals.
Example:<html>
<body>
<form method="post" action="<?php echo $_SERVER['PHP_SELF'];?>">
Name: <input type="text" name="fname">
<input type="submit">
</form>
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
// collect value of input field
$name = $_REQUEST['fname']; // Using $_REQUEST Superglobal
if (empty($name)) {
echo "Name is empty";
} else {
echo $name;
}
}
?>
</body>
</html>
