'How can I add CDN in php using require_once()?

I'm trying to insert my CSS which is in github repo but when I call it in my php file using require_once() it's not working.

Here is my code:

<?php
require_once("https://nishant5harma.github.io/Ctools/Ctools__CSS/navbar.css");
?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
<p>Hello</p>
    
</body>
</html>

Anyone help me out with this that is it possible? to do this someting like this or I have to store my file in my local system to do this?

After trying some solution still getting this blank page? enter image description here

php


Solution 1:[1]

The CSS needs to be inside a <style> tag, which should be in <head>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
    <?php
    require_once("https://nishant5harma.github.io/Ctools/Ctools__CSS/navbar.css");
    ?>
    </style>

</head>
<body>
<p>Hello</p>
    
</body>
</html>

You also need to enable URLs in include/require with

allow_url_include = On

in your php.ini.

Although normally you would have the client do this using a <link> tag.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link href="https://nishant5harma.github.io/Ctools/Ctools__CSS/navbar.css" rel="stylesheet">
</head>
<body>
<p>Hello</p>
    
</body>
</html>

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1

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