What are potential issues that may arise when trying to display a cookie immediately after setting it in PHP?

Potential issues that may arise when trying to display a cookie immediately after setting it in PHP include the fact that the cookie may not be immediately available in the $_COOKIE superglobal array due to the way cookies are handled in PHP. To solve this issue, you can set the cookie value in a variable and then display that variable immediately. 

<?php
// Set the cookie
setcookie('my_cookie', 'cookie_value', time() + 3600);

// Store the cookie value in a variable
$cookie_value = 'cookie_value';

// Display the cookie value
echo $cookie_value;
?>

Keywords

cookie display setcookie headers caching

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