Member Avatar for Tracie-marie

Hi,

I'm self taught but I've got a pretty good grasp on php now.

What I want to do is completely separate it from my html....if that's possible. I keep reading about it but everyone keeps referring back to using templates which I don't want to do (unless they're my own).

So, as an example, on my home page (which I would like to have remain an html doc) I want to fill a div container with either a login/register script or (if the user is logged in) an ad.

Is there someway of identifying the div container so that an external php file is called and fills it? Or do I need to use php code in the div container to call the external php file?

I hope I have worded this clearly.

Thanks in advance.

  • 2 Contributors
  • 2 Replies
  • 179 Views
  • 8 Hours Discussion Span
  • Latest Post Latest Post by Tracie-marie

Dani AI

Generated

Given the scenario described by — a home page that should remain a static HTML file while a small region is filled with either a login/register widget or an ad — several practical options exist. ’s server-side placeholder/template approach is a solid choice when the page can be rendered by PHP, but if the file must remain a plain .html then the dynamic piece can be loaded independently so the main file stays untouched.

A simple, robust pattern is to fetch a small HTML fragment from a PHP endpoint and inject it into the target div. The PHP endpoint is responsible for checking the session and returning only the fragment (not a full HTML page). Example:

<div id="authWidget"></div>

<script>
fetch('/widget.php', { credentials: 'include' })
  .then(r => r.text())
  .then(html => document.getElementById('authWidget').innerHTML = html)
  .catch(console.error);
</script>

If server configuration allows, Server Side Includes (SSI) are another way to keep a .html wrapper while including dynamic output from a script:

<!--#include virtual="/widget.php" -->

An iframe will also work for quick isolation, but it brings accessibility, styling and SEO tradeoffs. For high-scale caching setups, Edge Side Includes (ESI) or fragment caching at the reverse-proxy level can insert dynamic pieces without touching the main HTML.

Critical cautions: never trust client-side state for authentication — the PHP endpoint must validate the session server-side. Return only the minimal markup for the widget. Set appropriate cache headers (private/no-store) so logged-in fragments are not cached publicly. Provide a non-JS fallback (for example a simple link inside a <noscript> element) so the page still works without client scripts. These measures keep the main file static while safely delivering dynamic content.

Recommended Answers

All 2 Replies

Member Avatar for blocblue

Hi,

When I want to entirely separate my PHP and HTML content, I tend to use placeholders in my HTML code, and replace these using PHP.

A highly simplified example would be:

<!-- this file might be called index.html or index.tpl, etc
<html>
    <head>
        <title>{title}</title>
    </head>
</html>

Then, in the PHP you would use something like:

$strTemplate = '/path/to/index.tpl';

if(file_exists($strTemplate) && is_readable($strTemplate)) {
    $strTemplateContent = file_get_contents($strTemplate);
    
    // Populate an array with your tags and replacement content
    $arrTags = array(
        'title' => 'This is my title',
    );

    // Iterate through tags and replace with content
    foreach($arrTags as $strTag => $strContent) {
        $strTemplateContent = str_replace('{' . $strTag . '}', $strContent, $strTemplateContent);
    }

    // Remove any unreplaced tags - just so you don't have to specify content, or blank strings for every tag all the time
    $strTemplateContent = preg_replace('/{[^}]*}/', '', $strTemplateContent);

    // Do whatever you want with your content - e.g output it
    echo $strTemplateContent;

} else {
    $strTemplateFile = basename($strTemplate);
    throw new Exception("Template '$strTemplateFile' could not be found or is not readable.");
}

To get an include and essentially catch the content of an external file, the output control functions are useful.

There is probably a much better way of doing this. I've tried Smarty, and Zend View as well. Having logic in your templates isn't great, but can save a lot of time and headaches, especially with repeating content.

R.

Edited by blocblue because: n/a
Member Avatar for Tracie-marie

Excellent thank you. I think I get it, I shall try it out and find out.

Thanks for sharing

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.