Question

我有以下课程：

<?php

    require_once($_SERVER['DOCUMENT_ROOT']. '/wp-content/themes/quest/wahoo/common.php');


    class TestingClass
    {
        private function InsertUser()
        {
            $query = "EXEC dbo.InsertUser   @Title = @sTitle, -- varchar(50)
                                        @FirstName = @sFirstName, -- varchar(100)
                                        @MiddleName = @sMiddleName, -- varchar(100)
                                        @LastName = @sLastName, -- varchar(100)
                                        @Gender = @sGender, -- varchar(20)
                                        @DOB = @sDOB, -- datetime
                                        @Email = @sEmail, -- varchar(200)
                                        @Phone = @sPhone, -- varchar(50)
                                        @Mobile = @sMobile, -- varchar(50)
                                        @HomeAddress = @sHomeAddress, -- varchar(100)
                                        @HomePostCode = @sHomePostCode, -- varchar(10)
                                        @HomeSuburb = @sHomeSuburb, -- varchar(50)
                                        @HomeState = @sHomeState, -- varchar(20)
                                        @HomeCountry = @sHomeCountry, -- varchar(200)
                                        @BrowserDetails = @sBrowserDetails, -- varchar(500)
                                        @IsActive = @sIsActive, -- bit
                                        @Password = @sPassword, -- varchar(500)
                                        @Salt = @sSalt, -- varchar(50)
                                        @LastLogin = GETDATE(), -- datetime
                                        @CompanyID = @sCompanyId, -- int
                                        @Created = GETDATE(), -- datetime
                                        @CreatedBy = user, -- varchar(50)
                                        @LastModified = NULL, -- datetime
                                        @LastModifiedBy = NULL, -- varchar(50)
                                        @UserName = @sUserName, -- varchar(50)
                                        @UserRole = 'user' -- varchar(30)";


            $query_params = array(
                ':username' => $_POST['username']
            );

            try
            {

                $stmt = $db->prepare($query);
                $result = $stmt->execute($query_params);
            }
            catch(PDOException $ex)
            {
                // Note: On a production website, you should not output $ex->getMessage().
                // It may provide an attacker with helpful information about your code.
                die("Failed to run query: " . $ex->getMessage());
            }

            // display json encode on the page for AJAX to read
            echo json_encode($result);
        }
    }
?>

哪一行：

$stmt = $db->prepare($query);

我正在尝试使用我公共文件中的以下PDO变量：

$db = new PDO ("sqlsrv:server = tcp:$host; Database = $dbname", "$username", "$password");
$db->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );

我可以在类之外做到这一点，但是一旦我在类方法中并尝试使用$ db，我就会被告知该变量未定义。有没有办法我仍然可以这样做而不必使用全局变量（特别是因为我想将我的公共文件移到wwwroot之外）？

Answer 1

将您的变量传递给您的班级：

class TestClass {
    private $db = null;
    public function __construct($db){
         $this->db = $db;
    }
    public function executeSomething(){
          // you can now use $this->db as your PDO object
          // $db = $this->db;
          // $stmt = $db->prepare('sql code');
    }
}

$db = new PDO('...');

$instance = new TestClass($db);
$instance->executeSomething();

如何在类方法中调用我的PDO变量？

1 个答案: