How to Create Dynamic Image Slider Using PHP

How to Create Dynamic Image Slider Using PHP

In this article you will know how to create Dynamic Image Slider using PHP. Earlier I have designed many image sliders using html, css, javascript, jquery etc. This is the first time I will share with you how to make image slider using PHP.

dynamic image slider in PHP

To create an image slider using PHP, you can use the following steps:

  1. Create a folder on your server to store the images you want to use in the slider.

  2. Use the PHP scandir() function to read the contents of the folder and store the filenames of the images in an array.

  3. Use a foreach loop to iterate through the array of filenames and output the HTML for each image.

  4. Use CSS to style the images and create a slide effect, such as using the transition and transform properties to slide the images horizontally or vertically.

  5. Use JavaScript or jQuery to create the navigation buttons for the slider.

Here is an example of a basic PHP script that will read all the images in a folder called “slider” and output them as an image slider:

				
					<div class="slider">
    <?php
        $folder = 'slider/';
        $files = scandir($folder);
        foreach($files as $file) {
            $file_parts = pathinfo($file);
            if($file_parts['extension'] == 'jpg') {
                echo '<div class="slide">';
                echo '<img data-lazyloaded="1" src="data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=" decoding="async" data-src="'.$folder.$file.'" />';
                echo '</div>';
            }
        }
    ?>
</div>

				
			
				
					.slider {
    width: 600px;
    height: 400px;
    overflow: hidden;
    position: relative;
}

.slide {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    transition: left 1s ease-in-out;
}

.slide img {
    width: 100%;
    height: 100%;
}

				
			
				
					<script type="litespeed/javascript">var current=0,slides=document.getElementsByClassName("slide");function nextSlide(){goToSlide(current+1)}
function previousSlide(){goToSlide(current-1)}
function goToSlide(n){slides[current].className='slide';current=(n+slides.length)%slides.length;slides[current].className='slide showing'}
var next=document.getElementById('next');var previous=document.getElementById('previous');next.onclick=function(){nextSlide()};previous.onclick=function(){previousSlide()}</script> 
				
			
				
					<button id="previous">Previous</button>
<button id="next">Next</button>

This script will create a basic image slider that allows the user to navigate through the images using the “Previous” and “Next” buttons. You can adjust the styling and functionality as per your requirement.

automatic image slider in PHP

To create a dynamic automatic image slider using PHP, you can use the following steps:

  1. Create a folder on your server to store the images you want to use in the slider.

  2. Use the PHP scandir() function to read the contents of the folder and store the filenames of the images in an array.

  3. Use a foreach loop to iterate through the array of filenames and output the HTML for each image.

  4. Use JavaScript or jQuery to create the slider effect, such as sliding the images horizontally or fading them in and out.

  5. Use the JavaScript setInterval() function to set a timed interval for the automatic rotation of the images.

Here is an example of a basic PHP script that will read all the images in a folder called “slider” and output them as an automatic image slider:

				
					<div class="slider">
<?php
    $folder = 'slider/';
    $files = scandir($folder);
    foreach($files as $file) {
        $file_parts = pathinfo($file);
        if($file_parts['extension'] == 'jpg') {
            echo '<img data-lazyloaded="1" src="data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=" decoding="async" data-src="'.$folder.$file.'" />';
        }
    }
?>
</div>

This JavaScript code creates an automatic image slider by using the setTimeout() function to change the image every 3 seconds (3000 milliseconds) as specified in the time variable.

Here’s how it works:

  • The index variable keeps track of which image is currently being displayed.
  • The images array holds the file paths for the images to be displayed in the slider.
  • The changeImg() function is called when the page loads, and it sets the src attribute of an img element with the id “slide” to the current image in the images array.
  • The if statement increments the index variable so that the next image in the array is displayed on the next call of the changeImg() function, and the else statement resets the index variable to 0 when the last image is displayed, so the slider loops back to the first image.
  • The setTimeout() function is used to call the changeImg() function every 3 seconds, so the images are automatically changed every 3 seconds.
				
					<script type="litespeed/javascript">var index=0;var images=[];var time=3000;images[0]="image1.jpg";images[1]="image2.jpg";images[2]="image3.jpg";function changeImg(){document.slide.src=images[index];if(index<images.length-1){index++}else{index=0}
setTimeout("changeImg()",time)}
window.onload=changeImg</script> 
				
			
				
					<img name="slide" width="600" height="400">

This script will automatically change the image every 3 seconds (3000 milliseconds). You can adjust the time interval as per your requirement.

Note: This is a basic example, you may want to add some more functionality like, navigation buttons, captions, etc. Hope the above article helped you to know how to create image slider and automatic image slider with PHP.

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