How can the use of $_POST and $_GET methods help in transferring data between PHP files?

Using the $_POST and $_GET methods in PHP allows for the transfer of data between PHP files. $_POST is commonly used to send form data from one PHP file to another, while $_GET is used to pass data through URL parameters. This enables the passing of information seamlessly between different PHP files for processing or display. 

// Sending data using $_POST method
// File 1: sending_file.php
<form action="receiving_file.php" method="post">
    <input type="text" name="data">
    <input type="submit" value="Submit">
</form>

// File 2: receiving_file.php
<?php
if(isset($_POST['data'])){
    $received_data = $_POST['data'];
    echo "Received data: " . $received_data;
}
?>

// Passing data using $_GET method
// File 1: sending_file.php
<a href="receiving_file.php?data=Hello">Send Data</a>

// File 2: receiving_file.php
<?php
if(isset($_GET['data'])){
    $received_data = $_GET['data'];
    echo "Received data: " . $received_data;
}
?>

Keywords

$_POST $_GET data transfer PHP files methods

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