PHP: get_meta_tags function to display the meta tags of a given page , if any exist

This uses the get_meta_tags function to display the meta tags of a given
page , if any exist that is
<?php
$searchmeta = get_meta_tags("index.htm");
echo ($searchmeta["description"]);
echo ("<br>");
echo ($searchmeta["keywords"]);
?>

PHP: Display meta tags from another site

<?php
$searchmeta1 = get_meta_tags("http://example");
echo ($searchmeta1["description"]);
echo ("<br>");
echo ($searchmeta1["keywords"]);
?>

PHP: Extract keywords from a webpage

The title said it all: A great code snippet to easily extract meta keywords from any webpage.

<?php

$meta = get_meta_tags('https://thiscode4u.blogspot.com/');

$keywords = $meta['keywords'];

// Split keywords

$keywords = explode(',', $keywords );

// Trim them

$keywords = array_map( 'trim', $keywords );

// Remove empty values

$keywords = array_filter( $keywords );

print_r( $keywords );

?>