How to make a slider on php

Learn how to create a dynamic php slider with a step-by-step example. Create a stylish and interactive slide show!

Creating a Slider Using PHP

A slider is a great way to display a range of options for a user to choose from. It can be used for selecting a number or range of values, or for selecting from a list of options. Fortunately, creating a slider using PHP is easy to do. In this tutorial, we will go over the steps for creating a simple slider with PHP.

Step 1: Set up the HTML and PHP

The first step is to create the HTML for our slider. We will need a div that contains the slider, and a range input element. The range input element will contain the actual slider, and the div will be used to display the current value of the slider.

<div id="slider">
  <input type="range" min="0" max="100" value="50">
</div>
<div id="sliderValue"></div>

Now that we have the HTML set up, we need to add some PHP code to update the value of the slider. We will use the $_POST variable to get the value of the slider. We will then update the <div> with the current value of the slider.

if (isset($_POST['sliderValue'])) {
  $value = $_POST['sliderValue'];
  echo '<script>document.getElementById("sliderValue").innerHTML = "'.$value.'";</script>';
}

Step 2: Add the JavaScript

Next, we need to add some JavaScript code to update the value of the slider. We will use the change event of the slider to update the value. We will also use an AJAX call to send the value of the slider to the PHP script.

document.getElementById("slider").addEventListener("change", function(e) {
  var value = e.target.value;
  document.getElementById("sliderValue").innerHTML = value;
  var xhttp = new XMLHttpRequest();
  xhttp.open("POST", "slider.php", true);
  xhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  xhttp.send("sliderValue="+value);
});

Now that we have the JavaScript code set up, we need to add the PHP script that will receive the slider value from the AJAX call. This script will simply update the value of the slider with the value sent from the AJAX call.

if (isset($_POST['sliderValue'])) {
  $value = $_POST['sliderValue'];
  echo '<script>document.getElementById("sliderValue").innerHTML = "'.$value.'";</script>';
}

And that's all there is to it! With just a few lines of code, we have created a simple slider with PHP. We can use this slider to display a range of options for a user to choose from, or to select from a list of options.