How to Get the Actual URL After Redirection Using file_get_contents()?

Obtaining the Real URL After Redirection with file_get_contents

When fetching content from a URL using file_get_contents(), it can smoothly handle redirects to new URLs. However, sometimes it is necessary to determine the actual URL after the redirection occurs.

Is There a Solution?

To obtain the real URL after a redirect has taken place, a custom solution is required. File_get_contents() follows redirects by default, but this behavior can be overridden.

How to Override Redirect Behavior

To disable automatic redirection and obtain the actual URL:

1. Create a stream context using stream_context_create().
2. Set the 'follow_location' parameter to false to prevent automatic redirection.
3. Use the modified stream context when calling file_get_contents().

Code Snippet:

<code class="php">$context = stream_context_create(
    array(
        'http' => array(
            'follow_location' => false
        )
    )
);

$html = file_get_contents('http://www.example.com/', false, $context);

var_dump($http_response_header);</code>

After disabling automatic redirection, the $http_response_header array will contain information about the actual URL visited, providing the necessary data for further processing.

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