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                                 get_meta_tags

   (PHP 3>= 3.0.4, PHP 4 )
   get_meta_tags --  Extracts all meta tag content attributes from a file
   and returns an array

Description

   array get_meta_tags ( string filename [, int use_include_path])

   Opens filename and parses it line by line for <meta> tags in the file.
   This can be a local file or an URL. The parsing stops at </head>.

   Setting use_include_path to 1 will result in PHP trying to open the
   file along the standard include path as per the include_path
   directive. This is used for local files, not URLs.

   Example 1. What get_meta_tags() parses
<meta name="author" content="name">
<meta name="keywords" content="php documentation">
<meta name="DESCRIPTION" content="a php manual">
<meta name="geo.position" content="49.33;-86.59">
</head> <!-- parsing stops here -->

   (pay attention to line endings - PHP uses a native function to parse
   the input, so a Mac file won't work on Unix).

   The value of the name property becomes the key, the value of the
   content property becomes the value of the returned array, so you can
   easily use standard array functions to traverse it or access single
   values. Special characters in the value of the name property are
   substituted with '_', the rest is converted to lower case. If two meta
   tags have the same name, only the last one is returned.

   Example 2. What get_meta_tags() returns
   <?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
   ?>

     Note: As of PHP 4.0.5, get_meta_tags() supports unquoted HTML
     attributes.

   See also htmlentities() and urlencode().
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