How to use inline CSS and PHP In PHP

Using JavaScript and PHP

To change background images dynamically, modify CSS properties of HTML elements using inline CSS. In this approach, it sets a default background image ($backgroundImage) to a URL pointing to ‘gfg1.jpg’. It also sets a default condition ($someCondition) to true. Inside the HTML <style> tag, it sets the background image of the body to the value of $backgroundImage using PHP echo. It checks the condition $someCondition. If it evaluates to true, it updates $backgroundImage to another URL (‘gfg.png’).

Example: This example shows the implementation of the above-approach.

PHP

<?php
    $backgroundImage =
   // Default background image
'https://media.w3wiki.org/wp-content/uploads/20220620060143/gfg1.jpg';
// Default condition
    $someCondition = true; 

    // Determine background image based on condition
    if ($someCondition) {
        $backgroundImage =
'https://media.w3wiki.org/wp-content/uploads/20210318103632/gfg.png';
    }
?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width,
                   initial-scale=1.0">
    <title>Background Image with PHP</title>
    <style>
        body {
            background-image: url('<?php echo $backgroundImage; ?>');
            background-size: cover;
            /* Other CSS properties */
        }
    </style>
</head>
<body>
    <!-- HTML content -->
</body>
</html>

Output:

How to Change Background Image with PHP?

We are going to dynamically change background images on webpages using PHP. Incorporating a dynamic background image on a web page can improve user experience and provide personalized content based on different conditions.

Below are the approaches to change the background image using PHP:

Table of Content

Using inline CSS and PHP
Using JavaScript and PHP

How to use inline CSS and PHP In PHP

How to Change Background Image with PHP?

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