php - Slim Framework - get all headers -

i discovered slim yesterday , it. have run minor issues. here one:

i send out headers jquery ui app slim rest api. not problem @ jquery end- $.ajax provides capability. however, thought write small slim app test out slim's own ability give me access request headers. here app

function indexfunction() {  global $app;  $headers = $app->request->headers; echo json_encode($headers); }  header('content-type:text/plain'); $app = new \slim\slim(); $app->get("/",'indexfunction'); $app->run(); 

i opened dhc in chrome , fired off request

http://ipaddr/slimrestapi 

after adding header xhash = abc123

for measure started fiddler , watched traffic sent out request. fiddler faithfully reported following headers

host: ipaddr connection: keep-alive xhash: abc123 user-agent: mozilla/5.0 (windows nt 6.1) applewebkit/537.36 (khtml, gecko) chrome/39.0.2171.95 safari/537.36 accept: */* accept-encoding: gzip, deflate, sdch accept-language: en-us,en;q=0.8,de;q=0.6,fr;q=0.4 

however, results echoed slim empty json object, {}.

am misunderstanding here or there bug in slim? i'd appreciate help.

the headers in slim instance of slim\helper\set can content want all() function

json_encode($app->request()->headers()->all()); 

or in full example

$app->get('/', function() use ($app) {     echo json_encode($app->request()->headers()->all());     echo $app->request()->headers()->get('xhash'); }); 

the example shows how can avoid using global statement. read on subject http://tomnomnom.com/posts/why-global-state-is-the-devil-and-how-to-avoid-using-it