Can jquery write to the database?

jQuery is a fast, streamlined library for writing JavaScript. It makes JavaScript an easier and more convenient way to write. jQuery can operate on HTML documents, but it cannot directly write to the database.

To write data to the database, you usually need to use a server-side programming language, such as PHP, Python, or Ruby. There are special libraries or frameworks in these languages ​​that can be used to connect to the database and write data to the database.

When using jQuery to write a web page, you can use Ajax technology to pass data from the front end to the back end. Through Ajax, you can send HTTP requests to the server through JavaScript, obtain data from the server, and write the data to the database.

The following is an example of writing data to a database written using jQuery and PHP:

HTML code:

<form>
  <input type="text" id="name" placeholder="Name">
  <input type="text" id="email" placeholder="Email">
  <button id="submit">Submit</button>
</form>

jQuery code:

$('#submit').click(function() {
  var name = $('#name').val();
  var email = $('#email').val();

  $.ajax({
    url: 'write_to_database.php',
    type: 'POST',
    data: {
      name: name,
      email: email
    },
    success: function(response) {
      console.log(response);
      alert('Data saved to database.');
    },
    error: function(xhr, status, error) {
      console.log(xhr.responseText);
      alert('An error occurred while saving data to database.');
    }
  });
});

write_to_database. php code:

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
  die("Connection failed: " . $conn->connect_error);
}

// Get data from Ajax request
$name = $_POST['name'];
$email = $_POST['email'];

// Write data to database
$sql = "INSERT INTO customers (name, email) VALUES ('$name', '$email')";

if ($conn->query($sql) === TRUE) {
  echo "Data saved to database.";
} else {
  echo "Error: " . $sql . "<br>" . $conn->error;
}

$conn->close();
?>

In this example, when the user fills out the form and clicks the submit button, jQuery will use Ajax to send the data to the write_to_database.php file, which writes the data to a MySQL database called " myDB" table "customers". If the data is written successfully, a success message will be displayed.

So, although jQuery cannot write directly to the database, you can use a combination of server-side programming languages ​​and Ajax to write data to the database.

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