Introduction to how to make PHP COOKIE effective in a timely manner_PHP Tutorial

/**
* Set cookie
* @param string $name key name
* @param mixed $value value
* @param int $expire expiration time, the default is one day
*/
public final function setCookie($name , $value, $expire = null){
//Cookie value is empty, exit
if(empty($value)) return;
//Expiration time
if(empty($expire) )) $expire = time() + 86400;
$_COOKIE[$name] = $value;
//Determine whether value is an array
if(is_array($value)){
foreach ($value as $k => $v){
                                                                                                                                                                                             > }
}else{
} setcookie($name, $value, $expire);
}
}