session - PHP $_SESSION Values Don't Persist Between Requests -

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i have files:

set.php

<?php     session_start();     $_session['user_name'] = "anglinb";     var_dump($_session); ?>

get.php

<?php     session_start();     var_dump($_session); ?>

i have 1 server can go set.php , go get.php , both pages show same result of vardump.

the second server, hosted namecheap, not store data. $_session superglobal working fine stopped working.

what have tired

i have check writablity of tmp domain suggested here stackoverflow.com. information still doesn't persist between requests. know browser settings , code ok because works on server.

i have tried set path different directory permissions 777. 

ini_set(' session.save_path','/tmpp');

i can post phpinfo page if help.

here 2 cookies: set: set cookie

get: get cookie


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