Question

对于PHP和SQL，我是一个初学者，所以请原谅我。试图找出为什么我的SQL语句在传递给tblEmployees.Workgroup的变量时不起作用。当我把＆＃34; CS Lead＆＃34; vs变量。如果我需要包含任何其他信息，请告诉我。谢谢！

<?php
include 'header.php'; //Include header
include 'sidebar.php'; //Include sidebar

$workgroup = 'CS Lead';

$stmt = $db->query("SELECT 
                    tblSchedule.CurrentSchedule, 
                    tblSchedule.Login,
                    tblSchedule.StartTime,
                    tblSchedule.EndTime,
                    tblSchedule.Sunday,
                    tblSchedule.Monday,
                    tblSchedule.Tuesday,
                    tblSchedule.Wednesday,
                    tblSchedule.Thursday,
                    tblSchedule.Friday,
                    tblSchedule.Saturday,
                    tblSchedule.Lunch_Start,
                    tblSchedule.Lunch_End,
                    tblSchedule.Brk1_Start,
                    tblSchedule.Brk1_End,
                    tblSchedule.Brk2_Start,
                    tblSchedule.Brk2_End,
                    tblSchedule.Brk3_Start,
                    tblSchedule.Brk3_End,
                    tblSchedule.Lunch2_Start,
                    tblSchedule.Lunch2_End,
                    tblSchedule.TM_Day,
                    tblSchedule.TM_Start,
                    tblSchedule.TM_End,
                    tblEmployees.Workgroup
                FROM tblSchedule
                LEFT JOIN tblEmployees
                ON tblSchedule.Login=tblEmployees.Login
                WHERE CurrentSchedule='Y' AND tblEmployees.Workgroup = ' . $workgroup . '
                LIMIT 100");

$stmt -> execute();
?>

Answer 1

使用双引号...

$stmt = $db->query("SELECT 
                    tblSchedule.CurrentSchedule, 
                    tblSchedule.Login,
                    tblSchedule.StartTime,
                    tblSchedule.EndTime,
                    tblSchedule.Sunday,
                    tblSchedule.Monday,
                    tblSchedule.Tuesday,
                    tblSchedule.Wednesday,
                    tblSchedule.Thursday,
                    tblSchedule.Friday,
                    tblSchedule.Saturday,
                    tblSchedule.Lunch_Start,
                    tblSchedule.Lunch_End,
                    tblSchedule.Brk1_Start,
                    tblSchedule.Brk1_End,
                    tblSchedule.Brk2_Start,
                    tblSchedule.Brk2_End,
                    tblSchedule.Brk3_Start,
                    tblSchedule.Brk3_End,
                    tblSchedule.Lunch2_Start,
                    tblSchedule.Lunch2_End,
                    tblSchedule.TM_Day,
                    tblSchedule.TM_Start,
                    tblSchedule.TM_End,
                    tblEmployees.Workgroup
                FROM tblSchedule
                LEFT JOIN tblEmployees
                ON tblSchedule.Login=tblEmployees.Login
                WHERE CurrentSchedule='Y' AND tblEmployees.Workgroup = '$workgroup'
                LIMIT 100");

OR

WHERE CurrentSchedule='Y' AND tblEmployees.Workgroup = {$workgroup}

PHP变量在SQL查询中不起作用

1 个答案: