Fetch data directly from php to flutter - php

Question

I'm currently working on a Flutter project with php mysql as the backend. Is there anyway that I could possibly fetch data directly from php file? I'm so clueless.
For example, how do I fetch $dept from php file below and display it in a widget or store the data in Flutter:
<?php
session_start();
include_once ('config.php');
$lg_username = $_REQUEST['lg_username'];
$lg_password = $_REQUEST['lg_password'];
$lg_password = md5($lg_password);
$sql = "SELECT lg_username, lg_name, lg_dp_code FROM hr_login WHERE lg_username = '$lg_username' AND lg_password = '$lg_password'";
$res = mysqli_query($conn,$sql);
$userRow = mysqli_fetch_array($res,MYSQLI_ASSOC);
$user = $userRow['lg_username'];
$name = $userRow['lg_name'];
$dept = $userRow['lg_dp_code'];
$count = mysqli_num_rows($res);
if($count == 1){
return $dept;
}else{
echo json_encode("Error");
}
?>
Future _saveCheckIn()
Future _saveCheckIn() async {
var url = Uri.http(
"192.168.68.216", '/ump_attendance_2/save_check_in.php', {'q': '{http}'});
var response = await http.post(url, body: {
"lg_username": user.lg_username,
"lg_password": user.lg_password
});
//call the string data from php file
}
Thanks in advance.

Answer 1

You can use json_encode($dept) instead of $dept on the php side. After that, you can check data like below and return $dept data and use the futurebuilder.
Future _saveCheckIn() async {
var url = Uri.http(
"192.168.68.216", '/ump_attendance_2/save_check_in.php', {'q': '{http}'});
var response = await http.post(url,
body: {"lg_username": user.lg_username, "lg_password": user.lg_password});
if (response.statusCode == 200) {
return json.decode(response.body);
} else {
print('Something wents wrong');
}
}
FutureBuilder(
future: _saveCheckIn(),
builder: (BuildContext context, AsyncSnapshot snapshot) {
switch (snapshot.connectionState) {
case ConnectionState.done:
if (snapshot.hasData) {
return Text(snapshot.data);
}
return const Text('What do you want');
default:
return const Center(
child: CircularProgressIndicator(),
);
}
},
)