Question

在php中我在mysql中调用一个过程。现在我想检查查询result == true是否在我的php文件中设置返回变量为true或false如果查询失败。我怎么能这样做？

这是我的PHP代码：

public function DeleteSingleAccount($accountId)
{
        $Config = new Config();
        $mysqli = $Config->OpenConnection();            
        mysqli_query($mysqli, "CALL DeleteSingleAccount($accountId)") or die("Query fail: ". mysqli_error());
}

这是我现在在mysql中的查询：

DELETE 
    FROM table
        WHERE accountId = par_AccountId

此代码运行正确，但我想在查询为true或false时设置返回参数。

Answer 1

public function DeleteSingleAccount($accountId)
{
    $Config = new Config();
    $mysqli = $Config->OpenConnection();            
    return !! mysqli_query($mysqli, "CALL DeleteSingleAccount(" . intval($accountId) . ")");
}

我添加了intval（）以避免SQL注入（如果你确定$ accountId总是一个整数，永远不为空，空字符串，用户输入等，则不需要）。

Answer 2

认为你在寻找这样的东西：

public function DeleteSingleAccount($accountId) {
    $Config = new Config();
    $mysqli = $Config->OpenConnection();            
    $result = mysqli_query($mysqli, "CALL DeleteSingleAccount($accountId)") or die("Query fail: ". mysqli_error());
   //^Assignment of the query to a variable

    if($result && mysqli_num_rows($result) > 0) {
     //^Check if query is successfull      ^ Check if query has 1 or more rows in it! (You can delete this check if you don't care about how many row's the result has)
        echo "The query is successful and have 1 or more rows in it!";
    } else {
        echo "The query failed or have 0 rows in it!";
    }

}

当查询结果== true时，PHP mysql返回参数

2 个答案: