如何使用php实现取消订单

发布时间:2020-07-22 09:35:35 作者:Leah
来源:亿速云 阅读:161

今天就跟大家聊聊有关如何使用php实现取消订单,可能很多人都不太了解,为了让大家更加了解,小编给大家总结了以下内容,希望大家根据这篇文章可以有所收获。

php实现取消订单的方法:首先【order_status】为1时代表客户下单确定;然后为2时代表客户已付款;最后为0时代表订单已取消,运用swoole的异步毫秒定时器。

php实现取消订单的方法:

一、业务场景:当客户下单在指定的时间内如果没有付款,那我们需要将这笔订单取消掉,比如好的处理方法是运用延时取消,这里我们用到了swoole,运用swoole的异步毫秒定时器不会影响到当前程序的运行。

二、说明,order_status为1时代表客户下单确定,为2时代表客户已付款,为0时代表订单已取消(正是swoole来做的),下面的代表我没有用框架,比较纯的PHP代表方便理解和应用

三、举例说明,库存表csdn_product_stock产品ID为1的产品库存数量为20,产品ID为2的库存数量为40,然后客户下单一笔产品ID1减10,产品ID2减20,所以库存表只够2次下单,例子中10秒后自动还原库存,如下图:

图解:

1、第一次下完单产品ID1库存从20减到了10,产品ID2库存从40减到了20;

2、第二次下完单产品ID的库存为0了,产品ID2的库存也为0了;

3、第三次下单时,程序提示Out of stock;

4、过了10秒钟(每个订单下单后往后推10秒),客户两次下单,由于没有付款(csdn_order表的order_status为1),产品1和产品2的库存被还原了(csdn_order表的order_status变为0),客户又可以继续下单了

如何使用php实现取消订单

1、所需要sql数据库表

DROP TABLE IF EXISTS `csdn_order`;
CREATE TABLE `csdn_order` (
  `order_id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `order_amount` float(10,2) unsigned NOT NULL DEFAULT '0.00',
  `user_name` varchar(64) CHARACTER SET latin1 NOT NULL DEFAULT '',
  `order_status` tinyint(2) unsigned NOT NULL DEFAULT '0',
  `date_created` datetime NOT NULL,
  PRIMARY KEY (`order_id`)
) ENGINE=InnoDB AUTO_INCREMENT=0 DEFAULT CHARSET=utf8;
 
DROP TABLE IF EXISTS `csdn_order_detail`;
CREATE TABLE `csdn_order_detail` (
  `detail_id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `order_id` int(10) unsigned NOT NULL,
  `product_id` int(10) NOT NULL,
  `product_price` float(10,2) NOT NULL,
  `product_number` smallint(4) unsigned NOT NULL DEFAULT '0',
  `date_created` datetime NOT NULL,
  PRIMARY KEY (`detail_id`),
  KEY `idx_order_id` (`order_id`)
) ENGINE=InnoDB AUTO_INCREMENT=0 DEFAULT CHARSET=utf8;
 
DROP TABLE IF EXISTS `csdn_product_stock`;
CREATE TABLE `csdn_product_stock` (
  `auto_id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `product_id` int(10) NOT NULL,
  `product_stock_number` int(10) unsigned NOT NULL,
  `date_modified` datetime NOT NULL,
  PRIMARY KEY (`auto_id`),
  KEY `idx_product_id` (`product_id`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;
 
INSERT INTO `csdn_product_stock` VALUES ('1', '1', '20', '2018-09-13 19:36:19');
INSERT INTO `csdn_product_stock` VALUES ('2', '2', '40', '2018-09-13 19:36:19');

2、config.php

<?php
$dbHost = "192.168.0.110";
$dbUser = "root";
$dbPassword = "123";
$dbName = "test";
?>

3、order_submit.php

<?php
require("config.php");
try {
$pdo = new PDO("mysql:host=" . $dbHost . ";dbname=" . $dbName, $dbUser, $dbPassword, array(PDO::ATTR_PERSISTENT => true));
$pdo->setAttribute(PDO::ATTR_AUTOCOMMIT, 1);
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
 
$orderInfo = array(
'order_amount' => 10.92,
'user_name' => 'yusan',
'order_status' => 1,
'date_created' => 'now()',
'product_lit' => array(
0 => array(
'product_id' => 1,
'product_price' => 5.00,
'product_number' => 10,
'date_created' => 'now()'
),
1 => array(
'product_id' => 2,
'product_price' => 5.92,
'product_number' => 20,
'date_created' => 'now()'
)
)
);
 
try{
$pdo->beginTransaction();//开启事务处理
 
$sql = 'insert into csdn_order (order_amount, user_name, order_status, date_created) values (:orderAmount, :userName, :orderStatus, now())';
$stmt = $pdo->prepare($sql);  
$affectedRows = $stmt->execute(array(':orderAmount' => $orderInfo['order_amount'], ':userName' => $orderInfo['user_name'], ':orderStatus' => $orderInfo['order_status']));
$orderId = $pdo->lastInsertId();
if(!$affectedRows) {
throw new PDOException("Failure to submit order!");
}
foreach($orderInfo['product_lit'] as $productInfo) {
 
$sqlProductDetail = 'insert into csdn_order_detail (order_id, product_id, product_price, product_number, date_created) values (:orderId, :productId, :productPrice, :productNumber, now())';
$stmtProductDetail = $pdo->prepare($sqlProductDetail);  
$stmtProductDetail->execute(array(':orderId' => $orderId, ':productId' =>  $productInfo['product_id'], ':productPrice' => $productInfo['product_price'], ':productNumber' => $productInfo['product_number']));
 
$sqlCheck = "select product_stock_number from csdn_product_stock where product_id=:productId";  
$stmtCheck = $pdo->prepare($sqlCheck);  
$stmtCheck->execute(array(':productId' => $productInfo['product_id']));  
$rowCheck = $stmtCheck->fetch(PDO::FETCH_ASSOC);
if($rowCheck['product_stock_number'] < $productInfo['product_number']) {
throw new PDOException("Out of stock, Failure to submit order!");
}
 
 
$sqlProductStock = 'update csdn_product_stock set product_stock_number=product_stock_number-:productNumber, date_modified=now() where product_id=:productId';
$stmtProductStock = $pdo->prepare($sqlProductStock);  
$stmtProductStock->execute(array(':productNumber' => $productInfo['product_number'], ':productId' => $productInfo['product_id']));
$affectedRowsProductStock = $stmtProductStock->rowCount();
 
//库存没有正常扣除,失败,库存表里的product_stock_number设置了为非负数
//如果库存不足时,sql异常:SQLSTATE[22003]: Numeric value out of range: 1690 BIGINT UNSIGNED value is out of range in '(`test`.`csdn_product_stock`.`product_stock_number` - 20)'
if($affectedRowsProductStock <= 0) {
throw new PDOException("Out of stock, Failure to submit order!");
}
}
echo "Successful, Order Id is:" . $orderId .",Order Amount is:" . $orderInfo['order_amount'] . "。";
$pdo->commit();//提交事务
//exec("php order_cancel.php -a" . $orderId . " &");
pclose(popen('php order_cancel.php -a ' . $orderId . ' &', 'w'));
//system("php order_cancel.php -a" . $orderId . " &", $phpResult);
//echo $phpResult;
}catch(PDOException $e){
echo $e->getMessage();
$pdo->rollback();
}
$pdo = null;
} catch (PDOException $e) {
    echo $e->getMessage();
}
?>

4、order_cancel.php

<?php
require("config.php");
$queryString = getopt('a:');
$userParams = array($queryString);
appendLog(date("Y-m-d H:i:s") . "\t" . $queryString['a'] . "\t" . "start");
 
try {
$pdo = new PDO("mysql:host=" . $dbHost . ";dbname=" . $dbName, $dbUser, $dbPassword, array(PDO::ATTR_PERSISTENT => true));
$pdo->setAttribute(PDO::ATTR_AUTOCOMMIT, 0);
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
 
swoole_timer_after(10000, function ($queryString) {
global $queryString, $pdo;
 
try{
$pdo->beginTransaction();//开启事务处理
 
$orderId = $queryString['a'];  
$sql = "select order_status from csdn_order where order_id=:orderId";  
$stmt = $pdo->prepare($sql);  
$stmt->execute(array(':orderId' => $orderId));  
$row = $stmt->fetch(PDO::FETCH_ASSOC);
//$row['order_status'] === "1"代表已下单,但未付款,我们还原库存只针对未付款的订单
if(isset($row['order_status']) && $row['order_status'] === "1") {
$sqlOrderDetail = "select product_id, product_number from csdn_order_detail where order_id=:orderId";  
$stmtOrderDetail = $pdo->prepare($sqlOrderDetail);  
$stmtOrderDetail->execute(array(':orderId' => $orderId));  
while($rowOrderDetail = $stmtOrderDetail->fetch(PDO::FETCH_ASSOC)) {
$sqlRestoreStock = "update csdn_product_stock set product_stock_number=product_stock_number + :productNumber, date_modified=now() where product_id=:productId";  
$stmtRestoreStock = $pdo->prepare($sqlRestoreStock);
$stmtRestoreStock->execute(array(':productNumber' => $rowOrderDetail['product_number'], ':productId' => $rowOrderDetail['product_id']));
}
 
$sqlRestoreOrder = "update csdn_order set order_status=:orderStatus where order_id=:orderId";  
$stmtRestoreOrder = $pdo->prepare($sqlRestoreOrder);
$stmtRestoreOrder->execute(array(':orderStatus' => 0, ':orderId' => $orderId));
}
 
$pdo->commit();//提交事务
}catch(PDOException $e){
echo $e->getMessage();
$pdo->rollback();
}
$pdo = null;
 
appendLog(date("Y-m-d H:i:s") . "\t" . $queryString['a'] . "\t" . "end\t" . json_encode($queryString));
}, $pdo);
 
} catch (PDOException $e) {
echo $e->getMessage();
}
function appendLog($str) {
$dir = 'log.txt';
$fh = fopen($dir, "a");
fwrite($fh, $str . "\n");
fclose($fh);
}
?>


看完上述内容,你们对如何使用php实现取消订单有进一步的了解吗?如果还想了解更多知识或者相关内容,请关注亿速云行业资讯频道,感谢大家的支持。

推荐阅读:
  1. php订单同步怎么实现
  2. 怎么实现php中的订单模块

免责声明:本站发布的内容(图片、视频和文字)以原创、转载和分享为主,文章观点不代表本网站立场,如果涉及侵权请联系站长邮箱:is@yisu.com进行举报,并提供相关证据,一经查实,将立刻删除涉嫌侵权内容。

php 取消订单

上一篇:python有没有函数重载

下一篇:刷机以及常用命令

相关阅读

您好,登录后才能下订单哦!

密码登录
登录注册
其他方式登录
点击 登录注册 即表示同意《亿速云用户服务条款》