This question already has an answer here:
I would like to change the title of the HTML page based on the content, but im including only the content below the header part, so i have to change the title from this included php. To explain:
<html>
<header><title>I would like to change</title></header>
<!--CONTENT-->
<?
include "pages/some_page.php";
?>
</html>
How could i do that? Anyone can help in this?
</div>
You cant do that without a nasty hack.
What you should do is perform all your logic BEFORE you output html. A simple example follows:
<?php
//index.php
//perform logic and set variables before any html
$page = isset($_GET['menu'])?$_GET['menu']:'home';
switch($page){
case 'home':
$title = ' welcome to myco.ltd';
$content = 'pages/home.php';
break;
case 'about':
$title = 'about us';
$content = 'pages/about.php';
break;
case 'contact':
$title = 'get in touch';
$content = 'pages/contact.php';
break;
}
//the following html could be in a separate file and included, eg layout.php
?>
<html>
<head>
<title><?php echo $title;?></title>
</head>
<body>
<!--menu and other shared html here-->
<?php include $content;?>
<!-- shared footer stuff here-->
</body>
</html>
This is essentially a VERY barebones router script, an essential component of any framework. I would highly recommend you consider a lightweight framework rather than write everything from scratch. http://fatfreeframework.com/home would be a great start
Use javascript in some_page.php .
<?php echo "<script>document.title = '".$dynamicTitleVariable."';</script>"; ?>
The function below will let you change document title, meta keywords and meta description. You may use it anywhere in your application.
Just be sure to turn on output buffering using ob_start() before the function is called. I prefer including it at the top of application, just after all global settings are loaded.
function change_meta_tags($title, $keywords, $description){
$output = ob_get_contents();
if (ob_get_length() > 0) { ob_end_clean(); }
$patterns = array("/<title>(.*?)<\/title>/", "/<meta name=\"keywords\" content=\"(.*?)\" \/>/", "/<meta name=\"description\" content=\"(.*?)\" \/>/");
$replacements = array("<title>$title</title>", "<meta name=\"keywords\" content=\"$keywords\" />", "<meta name=\"description\" content=\"$description\" />");
$output = preg_replace($patterns, $replacements, $output);
echo $output;
}
Pending what you are trying to base the content off of, this could easily be done via an MVC-style setup. In your controller, you would generate the title based off of content that could be grabbed and pass this through to the view as a variable. Then, in your view have the title be dynamically set:
<html>
<head>
<title>
<?php echo $title; ?>
</title>
</head>
</html>
This should also work fine with SEO capability, as crawlers will be able to interpret this far better than they would JavaScript.