https://www.linkedin.com/pulse/deploy-code-scale-aws-ec2-autoscaling-load-balancer-codedeploy-das/

When you write your script and save it, it will not automatically run.

You must load the file first.
After loading the file the cronjob will continue running automatically.

<script type="text/javascript">
  // Cron Timer (Set run timer)
  setTimeout(function() {
   location.reload();
 }, 25000 /* 25 seconds */ );
</script>

<?php
  // Call to Method
  csv_dump_and_send();
?>

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      // Application name
      title: 'Flutter Hello World',
      // Application theme data, you can set the colors for the application as
      // you want
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      // A widget which will be started on application startup
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatelessWidget {
  final String title;

  const MyHomePage({@required this.title});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        // The title text which will be shown on the action bar
        title: Text(title),
      ),
      body: Center(
        child: Container(
          child: DefaultTabController(
            length: 2,
            initialIndex: 0,
            child: Column(
              children: [
                TabBar(
                  labelColor: Colors.blue,
                  tabs: [
                    Tab(
                      text: 'OEM',
                    ),
                    Tab(
                      text: 'Hotshots',
                    )
                  ],
                ),
                Expanded(
                  child: TabBarView(
                    children: [
                      Column(children: [
                        Column(
                          children: <Widget>[
                            const ExpansionTile(
                              title: Text('Samsung (357)'),
                              children: <Widget>[
                                ListTile(
                                  title: Text('This is tile number 1'),
                                ),
                              ],
                            ),
                            const ExpansionTile(
                              title: Text('Huawei (4)'),
                              children: <Widget>[
                                ListTile(
                                  title: Text('Huawei P Smart 2021 NFC'),
                                ),
                                ListTile(
                                  title: Text('Huawei P40 lite 6/128GB Black'),
                                ),
                                ListTile(
                                  title: Text('MatePad T10 LTE 32GB Blue'),
                                ),
                                ListTile(
                                  title: Text('P40 lite 6/128GB Sakura Pink'),
                                ),
                              ],
                            ),
                            const ExpansionTile(
                              title: Text('Apple (21)'),
                              children: <Widget>[
                                ListTile(
                                  title: Text('This is tile number 1'),
                                ),
                              ],
                            ),
                            const ExpansionTile(
                              title: Text('Xiaomi (785)'),
                              children: <Widget>[
                                ListTile(
                                  title: Text('This is tile number 1'),
                                ),
                              ],
                            ),
                            const ExpansionTile(
                              title: Text('Oppo (138)'),
                              children: <Widget>[
                                ListTile(
                                  title: Text('This is tile number 1'),
                                ),
                              ],
                            ),
                          ],
                        ),
                      ]),
                      Center(
                        child: Text('Hotshots'),
                      ),
                    ],
                  ),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      // Application name
      title: 'Flutter Hello World',
      // Application theme data, you can set the colors for the application as
      // you want
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      // A widget which will be started on application startup
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatelessWidget {
  final String title;

  const MyHomePage({@required this.title});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        // The title text which will be shown on the action bar
        title: Text(title),
      ),
      body: Container(
        child: DataTable(
          columns: [
            DataColumn(label: Text('ID'), tooltip: 'Book identifier'),
            DataColumn(label: Text('Book')),
            DataColumn(label: Text('Author'))
          ],
          rows: [
            DataRow(cells: [
              DataCell(Text('#100')),
              DataCell(
                Text(
                  'Flutter Basics',
                  style: TextStyle(fontWeight: FontWeight.bold),
                ),
              ),
              DataCell(Text('David John')),
            ]),
            DataRow(cells: [
              DataCell(Text('#101')),
              DataCell(Text('Dart Internals')),
              DataCell(Text('Alex Wick')),
            ])
          ],
          showBottomBorder: true,
          headingTextStyle: TextStyle(fontWeight: FontWeight.bold, color: Colors.grey),
        ),
      ),
    );
  }
}