What are common issues when working with cookies in PHP?

One common issue when working with cookies in PHP is setting cookies after any output has been sent to the browser, as this will result in an error. To solve this, make sure to set cookies before any HTML or text output in your PHP script. 

<?php
// Incorrect way - setting cookie after output
echo "Hello, World!";
setcookie("user", "John", time() + 3600);

// Correct way - setting cookie before output
setcookie("user", "John", time() + 3600);
echo "Hello, World!";
?>

Keywords

cookies PHP session setcookie expiration

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