file get contents sample context

<?php

$options = array(
    'http' => array(
        'timeout' => 100,
        'method'  => 'POST',
        'header'  => "Accept-language: en\r\n"
                   . "Cookie: cookieName=value"
        /*
         * these are just some examples feel free to populate with anything your protocol (http in this case) supports
         */
    )
);

$context = stream_context_create( $options );
file_get_contents('http://someUrl', null, $context );