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How to get data in reactjs from php mysql database?

by therichpost
Published: Updated: 9 comments
How to get data in reactjs from php mysql database?

Hello my friends, welcome back to my blog. Today in this blog post, I am going to tell you, How to get data in reactjs from php mysql database?

Reactjs get data from php mysql

For reactjs new comers, please check the below link:

Reactjs Basic Tutorials


Friends now I proceed onwards and here is the working code snippet for How to get data in reactjs from php mysql database? and please use this carefully to avoid the mistakes:

1. Firstly friends we need fresh reactjs setup and for that we need to run below commands into our terminal and also w should have latest node version installed on our system:

npx create-react-app reactgetdata

cd reactgetdata

npm start // run the project

 

2. Now we need to run below commands to get bootstrap(for good layout) and axios(to post data request to php)  modules into our react js app:

npm install bootstrap --save

npm install axios --save

npm start

 

3. Finally friends we need to add below code into our src/App.js file to get final output on web browser:

import React from 'react';
import './App.css';

//bootstrap
import 'bootstrap/dist/css/bootstrap.min.css';

//Axios for get request
import axios from 'axios';



class App extends React.Component {
 //initialize an object's state in a class
  constructor(props) {
    super(props)
      this.state = {
        data: []
              }
      }
      //ComponentDidMount is use to Connect a React app to external applications, such as web APIs or JavaScript functions
      componentDidMount(){
        //get request
        axios.get('http://localhost/save.php').then(res => 
        {
        
        this.setState({data: res.data});
           }); 
        
        }
    
 
  render() {
   
    return (
     
      <div className="maincontainer">
       
        <h1 className="mr-5 ml-5 mt-5">Therichpost.com</h1>
        <div className="container mb-5 mt-5 text-left">
        
        <table class="table table-hover">
          <thead>
            <tr>
              <th>ID</th>
              <th>Email</th>
              <th>Username</th>
            </tr>
          </thead>
          <tbody>
          {this.state.data.map((result) => {
            return (
             
                 <tr>
                  <td>{result.id}</td>
                  <td>{result.email}</td>
                  <td>{result.username}</td>
                </tr>
             
            )
          })}
           
            
          </tbody>
        </table>

       
            
      </div>

     
      </div>
     
)
};
}

export default App;

 

4. Now friends here is my php code snippet to get data from mysql and show into reactjs and I added this code into my xampp/htdocs/save.php file:

<?php
$servername = "localhost";
$username   = "root";
$password   = "";
$dbname     = "users";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} 
    $trp = mysqli_query($conn, "SELECT * from userdetails");
    $rows = array();
    while($r = mysqli_fetch_assoc($trp)) {
        $rows[] = $r;
    }
    print json_encode($rows); //convert php data to json data

?>

 

Now we are done friends. If you have any kind of query or suggestion or any requirement then feel free to comment below.

Guys in my next post, I will tell you, reactjs php crud operation.

Note: Friends, I just tell the basic setup and things, you can change the code according to your requirements. For better understanding must watch video above.
I will appreciate that if you will tell your views for this post.Nothing matters if your views will good or bad.

Jassa

Thanks

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9 comments

Nathaniel Nkrumah October 29, 2020 - 3:05 pm

Great tutorial. Thanks

Reply
Ajay Malhotra October 29, 2020 - 3:07 pm

Welcome.

Reply
Dhruv Patil November 21, 2020 - 7:41 pm

best article

Reply
Ajay Malhotra November 22, 2020 - 4:13 am

Thanks

Reply
Abdul December 27, 2020 - 12:48 am

Great tutorial, in your App.js file line 23 the link is “axios.get(‘http://localhost/reactimageupload.php’)” shouldn’t it be “axios.get(‘http://localhost/save.php’)”?

Reply
Ajay Malhotra December 28, 2020 - 7:01 am

Post updated, thanks.

Reply
Pedro Brea January 12, 2021 - 10:38 pm

Access to fetch at ‘http://localhost/test/save.php’ from origin ‘http://localhost:3000’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource.

Reply
Sangita October 18, 2022 - 9:33 am

Add the following in php file
header(‘Access-Control-Allow-Origin: *’);
header(‘Access-Control-Allow-Headers: access’);
header(‘Access-Control-Allow-Methods: GET, POST’);
header(‘Content-Type: application/json, charset=UTF-8’);
header(‘Access-Control-Allow-Headers: X-Requested-With, Content-Type, Access-Control-Allow-Headers, Authorization’);

Reply
therichpost October 18, 2022 - 11:55 am

Good to know this, thanks.

Reply

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