PHP 実験室 【覚書 クッキーの操作】

$atai1 = 'クッキーへ書き込む値';
$n = 'クッキー賞味期限';
setcookie ( "smp_cookie[var1]" , $atai1, time()+ $n * 24 * 3600 );
setcookie ( "smp_cookie[var2]" , $atai2, time()+ $n * 24 * 3600 );
setcookie ( "smp_cookie[var3]" , $atai3, time()+ $n * 24 * 3600 );
setcookie ( "smp_cookie[var4]" , $atai4, time()+ $n * 24 * 3600 );
$smp1 = $_COOKIE['smp_cookie']['var1'];
$smp2 = $_COOKIE['smp_cookie']['var2'];
$smp3 = $_COOKIE['smp_cookie']['var3'];
$smp4 = $_COOKIE['smp_cookie']['var4'];