Php 如何为函数更新编写RESTAPI方法？

我设计了一个在C#和MySQL之间执行“Rest api”的查询，其功能如下：

 function index ()
    {
    $ hadi = "SELECT
      wp_postmeta1.post_id,
      wp_postmeta1.meta_key,
      wp_postmeta1.meta_value
    FROM wp_postmeta1
    WHERE wp_postmeta1.meta_key = '_sku'
    OR wp_postmeta1.meta_key = '_stock'
    OR wp_postmeta1.meta_key = '_price'
    ORDER BY wp_postmeta1.post_id
    ";
        $ res = query ($ hadi);
    while ($ row = mysqli_fetch_assoc ($ res))
    $ rows [] = $ row;
    return $ rows;
    }

要测试此消息，请执行以下操作：

索引测试：指示可接受的显示

[{"post_id": "1927", "meta_key": "_ stock", "meta_value": "27"}, {"post_id": "1927", "meta_key": "_ price", "meta_value": "15000 "}, {" post_id ":" 1927 "," meta_key ":" _ sku "," meta_value ":" 00302016 "}, {" post_id ":" 1928 "," meta_key ":" _ price "," meta_value ": "2200"}, {"post_id": "1928", "meta_key": "_ stock", "meta_value": "10"}, {"post_id": "1928", "meta_key": "_ sku", "meta_value" ":" 00301421 "}, {" post_id ":" 1929 "," meta_key ":" _ sku "," meta_value ":" 00301056 "}, {" post_id ":" 1929 "," meta_key ":" _ price ", "meta_value": "5500"}, {"post_id": "1929", "meta_key": "_ stock", "meta_value": "10"},

[{"post_id": "1928", "meta_key": "_ price", "meta_value": "2200"}, {"post_id": "1928", "meta_key": "_ stock", "meta_value": "10 "}, {" post_id ":" 1928 "," meta_key ":" _ sku "," meta_value ":" 00301421 "}]

而且

function edit ($ post_id)
{
    $ res = query ("SELECT
  wp_postmeta1.post_id,
  wp_postmeta1.meta_key,
  wp_postmeta1.meta_value
FROM wp_postmeta1
WHERE wp_postmeta1.meta_key = '_sku'
OR wp_postmeta1.meta_key = '_stock'
OR wp_postmeta1.meta_key = '_price'
HAVING `post_id` = $ post_id
ORDER BY wp_postmeta1.post_id ");
$ rows = [];
while ($ row = mysqli_fetch_assoc ($ res))
$ rows [] = $ row;
return $ rows;
}

要测试此消息，请执行以下操作：

编辑测试：显示可接受的显示

[{"post_id": "1927", "meta_key": "_ stock", "meta_value": "27"}, {"post_id": "1927", "meta_key": "_ price", "meta_value": "15000 "}, {" post_id ":" 1927 "," meta_key ":" _ sku "," meta_value ":" 00302016 "}, {" post_id ":" 1928 "," meta_key ":" _ price "," meta_value ": "2200"}, {"post_id": "1928", "meta_key": "_ stock", "meta_value": "10"}, {"post_id": "1928", "meta_key": "_ sku", "meta_value" ":" 00301421 "}, {" post_id ":" 1929 "," meta_key ":" _ sku "," meta_value ":" 00301056 "}, {" post_id ":" 1929 "," meta_key ":" _ price ", "meta_value": "5500"}, {"post_id": "1929", "meta_key": "_ stock", "meta_value": "10"},

[{"post_id": "1928", "meta_key": "_ price", "meta_value": "2200"}, {"post_id": "1928", "meta_key": "_ stock", "meta_value": "10 "}, {" post_id ":" 1928 "," meta_key ":" _ sku "," meta_value ":" 00301421 "}]

现在，对于函数更新，我编写了这个方法，它是错误的

function update ()
{
    $ post_id = $ _ GET ['post_id'];
$ meta_key = $ _GET ['meta_key'];
$ meta_value = $ _GET ['meta_value'];

    $ res = query ("UPDATE` wp_postmeta1`
SET `meta_value` = $ meta_value
WHERE `wp_postmeta1`.`post_id` = $ post_id
AND `wp_postmeta1`.`meta_key` = '_stock'
AND `wp_postmeta1`.`meta_value` =` meta_value`
LIMIT 1 ");
  if ($ res)
    return "1 record updated";
else return "error";
}

要测试此消息，请执行以下操作：

更新测试：错误

---

你的方式是什么？就在昨天，我学到了一种叫做“原始观察”的东西。使用pretty是有益的。由于Web部件固有的弱类型化，特定的Web服务调用可能会从中受益

我通常做的另一件事是并发控制。我更喜欢乐观并发（不锁定，只在更新期间测试更改）。在SQL中，我得到了Rowversion列以避免更新竞争条件。我只是把它和其他的东西一起检索，这是一个需要添加到updateswere子句中的东西。如果存在错误匹配，可能会引发SQL异常

---

根据，使用正确的开关，时间戳可以类似于rowversion。请记住，异常快速的查询和更新（一个自动过程）仍然可能会遇到/导致时间戳冲突。让SQL rowversion成为一个简单的运行计数器是明智的。

我感到困惑。您用C#标记了您的问题，但代码看起来非常像PHP。你用哪种语言？在任何情况下，您都应该仔细阅读MySQL中使用准备好的语句。我将在C#Sharp和MySQL rest api之间进行操作，但现在我正在进行php编程。您的解决方案是什么？你有什么疑问write@HadiFazilat我对PHP有点生疏，无法为它编写查询。IIRC，它使用那些wierd准备的语句，而不是参数化查询。老实说，我看到这个问题只是因为C#标记。