How can proper error handling and validation prevent redirection loops in PHP scripts?

To prevent redirection loops in PHP scripts, proper error handling and validation can be implemented by checking for conditions that may lead to a redirection loop before performing the redirection. This can include checking if a user is already on the page they are trying to redirect to, setting a maximum number of allowed redirections, or using session variables to track the redirection history. 

// Check if the user is already on the page they are trying to redirect to
if ($_SERVER['REQUEST_URI'] == '/redirected-page.php') {
    // Handle error or redirect to a different page
    header('Location: /error-page.php');
    exit;
}

// Perform the redirection
header('Location: /redirected-page.php');
exit;

Keywords

error handling validation redirection loops PHP scripts prevent

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