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$_REQUEST Variables and Array With PHP

The $_REQUEST array stores all $_POST, $_GET and $_COOKIE variables into an array. Therefore, you can use $_REQUEST to output variables and validate statements. Since you can use $_REQUEST for $_GET and $_POST variables, it can cause issues if $_GET variables and $_POST variables have the same name, but different values.

The code below shows how $REQUEST can be used to check and output $_GET and $_POST values.


foreach($_REQUEST as $key => $value){
echo $key."-".$value."<br/>";
if($_REQUEST['variable'] == '5'){
echo "Here is the value of the get variable<br/>";
}else if($_REQUEST['req'] == 'myrequest'){
echo "Here is the value of the post variable<br/>";
<a href="request.php?variable=5">Get Variable</a>

<form method ="post" action="<?php echo $_SERVER['PHP_SELF'];?> " >
<input type="hidden" name = "req" value = "myrequest" />
<input type = "submit" value = "submit" />