How can I output the value "123" from a cookie in PHP?

To output the value "123" from a cookie in PHP, you need to first check if the cookie exists and then retrieve its value using the $_COOKIE superglobal. You can then echo out the value to display it on the page. 

if(isset($_COOKIE['cookie_name'])) {
    $cookie_value = $_COOKIE['cookie_name'];
    echo $cookie_value;
}

Keywords

cookie PHP output value retrieve

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