我需要使用员工ID
从表中获取数据有两个表
1" USER_INFO"其中包含id,name,password,email,ScheduleDate等!
2"取"其中包含id,ScheduleDate,starttime,endtime,hours,employeeid。
如果我提供名称和密码,则需要特定用户的ID来自" user_info"并且它应该将id作为雇员id发送到表" fetch"它应该从该员工ID中获取数据。
User_info数据库
获取数据库
例如,如果我将输入作为名称:rajesh密码:1995在user_info中,它应该采用该用户的id,并且它应该将id作为员工ID 15发送到" fetch"表
当我尝试将ID作为员工ID发送时,它不打印任何内容,并且没有显示任何错误。
<?php
require "init.php";
$name = "surya";
$password = "1995";
$Sql = "SELECT * FROM `user_info`
WHERE `name`='".$name."' AND
`password`='".$password."';";
$result = mysqli_query($con, $Sql);
$retrive = array();
while($row = mysqli_fetch_array($result))
{
$user_id = $row['id'];
$sql = "SELECT id, ScheduleDate, StartTime,Endtime, Hours,Employeeid
FROM empdet WHERE Employeeid ='".$user_id."' ";
$result = $con->query($sql);
if ($result->num_rows > 0)
{
// output data of each row
while($row = $result->fetch_assoc())
{
$id=$row["id"].
$date=$row["ScheduleDate"];
$start=$row["StartTime"];
$end=$row["Endtime"];
$hour=$row["Hours"];
$Employeeid=$row["Employeeid"];
list($year,$month,$day) = split("-",$date);
$data[] = array("year"=>$year,
"month"=>$month,
"day"=>$day,
"StartTime"=>$start,
"Endtime"=>$end,
"Hours"=>$hour );
}
$response = $data;
} else
{
echo "0 results";
}
}
echo json_encode(array("user_data"=> $response));
?>
我需要从&#34; fetch&#34;中获取所有3个数据使用员工ID 15的表。任何人都可以帮忙找到它吗?
答案 0 :(得分:1)
从我的理解,你的代码是正确的,直到第二次查询。在该查询执行中,您将获得多个记录。所以你需要使用循环。
见下面的示例代码:
while ($rows = $result->fetch_assoc()) {
$date=$rows["ScheduleDate"];
$start=$rows["StartTime"];
$end=$rows["Endtime"];
$hour=$rows["Hours"];
list($year,$month,$day) = split("-",$date);
$data[] = array("year"=>$year,
"month"=>$month,
"day"=>$day,
"StartTime"=>$start,
"Endtime"=>$end,
"Hours"=>$hour );
}
$response = $data;
如果有帮助,请告诉我。
答案 1 :(得分:0)
我会使用'INNER JOIN'来实现你想要的目标:
$sql = "SELECT fetch.ScheduleDate, fetch.StartTime, fetch.Endtime, fetch.Hours"
." FROM fetch INNER JOIN user_info ON fetch.id = user_info.id"
." WHERE user_info.name = ? AND user_info.password = ? ";
//Prepare statement
$stmt = $mysqli_prepare($con, $sql);
//Bind parameter (id)
mysqli_stmt_bind_param($stmt, ss, $name, $password);
//Execute statement
mysqli_stmt_execute($stmt);
//Bind results
mysqli_stmt_bind_result($stmt, $date, $start, $end, $hour);
//Fetch values (puts the values into the variables)
mysqli_stmt_fetch($stmt);