get_meta_tags — Extracts all meta tag content attributes from a file and returns an array

parse-website-meta-info.php

<?php
/*
  array get_meta_tags ( string $filename [, bool $use_include_path = false ] )
  (PHP 4, PHP 5, PHP 7)
  ref.: http://php.net/manual/en/function.get-meta-tags.php
*/

// Assuming the above tags are at www.example.com
$tags = get_meta_tags('http://www.example.com/');

// Notice how the keys are all lowercase now, and
// how . was replaced by _ in the key.
echo $tags['author'];       // name
echo $tags['keywords'];     // php documentation
echo $tags['description'];  // a php manual
echo $tags['geo_position']; // 49.33;-86.59

// Only meta tags with name attributes will be parsed. Quotes are not required.