What potential issues can arise when using conditional statements for URL redirection in PHP?

One potential issue that can arise when using conditional statements for URL redirection in PHP is that if the condition is not met, the redirection may not occur as expected, leading to potential errors or unexpected behavior. To solve this, it is important to include an else statement to handle cases where the condition is not met and provide a default redirection URL.

// Example of using conditional statements for URL redirection with an else statement for handling default redirection
if ($condition) {
    header("Location: redirect_url_1.php");
    exit();
} else {
    header("Location: default_redirect_url.php");
    exit();
}