PHP implements cookies to take effect immediately

Today when students were doing exercises, they encountered the problem that cookies in PHP must be refreshed to take effect. They can be solved by the following methods:

//   php COOKIE设置函数立即生效，支持数组
function cookie($var, $value = '', $time = 0, $path = '', $domain = '', $s = false)
{
    $_COOKIE[var] = $value;
    if (is_array($value)) {
        foreach ($value as $k => $v) {
            setcookie($var .'['.$k.']', $v, $time, $path, $domain, $s);
        }
    } else {
            setcookie($var,$value, $time, $path, $domain, $s);
    }
}

In this way, there is no need to refresh, just directly You can get the value of the cookie. For details on the cookie parameters, please see the PHP manual.

Tips: In this code, these two sentences are effective for instant update of cookies:

$_COOKIE[$var] = $value;
setcookie($var,$value,$time,$path,$domain,$s);

That is, for cookies Two assignments are made at once.

Recommended: "PHP Tutorial"

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