Are there best practices for managing cookies in PHP to ensure the updated content is available upon script re-execution?

When managing cookies in PHP, it's important to set the cookie before any output is sent to the browser. This ensures that the updated content will be available upon script re-execution. Additionally, make sure to check if the cookie is set before trying to access its value to avoid errors. 

<?php
// Set the cookie before any output
setcookie("example_cookie", "value", time() + 3600, "/");

// Check if the cookie is set before accessing its value
if(isset($_COOKIE['example_cookie'])) {
    $cookie_value = $_COOKIE['example_cookie'];
    echo "Cookie value: " . $cookie_value;
} else {
    echo "Cookie not set";
}
?>

Keywords

cookies PHP content management script re-execution updated content

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