PHP implementation for returning JSON and HTML via JSONP

HTML_format.php

<?php

// set content type to javascript (else it'll think it's HTML)
header( 'Content-Type: application/javascript; charset=utf-8' );

// allow the requester to specify a callback function
$callback = isset( $_GET['callback'] ) ? $_GET['callback'] : 'callback';

// retrieve the contents of the current event's HTML file
$configHtmlText = file_get_contents( __DIR__ . '/Event1069.html' );

// stick the html string into a php array (with key "html") then
// create JSON out of it
$stringifiedJson = json_encode( array(
	'html' => $configHtmlText
) );

// return javascript callback function
echo "$callback( $stringifiedJson );";

JSON_format.php

<?php

// set content type to javascript (else it'll think it's HTML)
header( 'Content-Type: application/javascript; charset=utf-8' );

// allow the requester to specify a callback function
$callback = isset( $_GET['callback'] ) ? $_GET['callback'] : 'callback';

// retrieve the contents of the current event's HTML file
$configJsonText = file_get_contents( __DIR__ . '/Event1069.json' );

// return javascript callback function
echo "$callback( $configJsonText );";