How can data be passed from one page to another using $_POST in PHP?

To pass data from one page to another using $_POST in PHP, you can submit a form with method="post" and then access the data on the receiving page using the $_POST superglobal array. Simply set the form action attribute to the URL of the receiving page. 

// Sending page (form submission)
<form method="post" action="receiver.php">
    <input type="text" name="data">
    <button type="submit">Submit</button>
</form>

// Receiving page (receiver.php)
<?php
if(isset($_POST['data'])){
    $receivedData = $_POST['data'];
    echo "Received data: " . $receivedData;
}
?>

Keywords

$_POST data passing PHP form submission variables

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