Reading the inside of

If you’re in the admin and you want to “read” the <head /> of the frontend, you can make an internal HTTP request and scrape the response HTML:

$url = home_url();

$request = wp_remote_get( $url );

$body = wp_remote_retrieve_body( $request );

$dom = new DOMDocument();

libxml_use_internal_errors( true );

$dom->loadHTML( $body );

$xpath = new DOMXpath( $dom );

$links = $xpath->query( '/html/head/link[@rel="stylesheet"]' );

foreach ( $links as $link ) {
    echo $link->getAttribute( 'href' );
    echo "\n";
}

This is just example code as I don’t know what exactly you’re looking for – you might want to change $url to be a specific post permalink (instead of the homepage), or you might want to change the DOM xpath to query the link tag you’re looking for directly by its attribute.

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