php用session实现多并发抢购不多卖-PHP源码

php用session实现多并发抢购不多卖-PHP源码

 0){
	$buy = true;
	$_SESSION['i']--;
}else{
	$buy = false;
}

session_write_close();

if(isset($_COOKIE['PHPSESSID'])){//还原原来的session
	session_id($_COOKIE['PHPSESSID']);
	session_start();
}