How can one prevent a PHP page from continuously calling itself?

To prevent a PHP page from continuously calling itself, you can use a conditional check to ensure that the page is not calling itself in a loop. One common method is to set a session variable when the page is first loaded and then check for the existence of that session variable before executing the code that calls the page again. 

<?php
session_start();

if(!isset($_SESSION['visited'])) {
    $_SESSION['visited'] = true;
    // Your code here
}
?>

Keywords

recursion exit condition stack overflow function recursion

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