PHP variable scoping -

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i'm having trouble variable scoping in php. here's structure of code--

<?php $loader = new elload(); $sessionid = ''; $method = $_request['m']; if (strcasecmp($method, "getfile") == 0) {     global $loader;     $loader->load($file['text']);     global $sessionid;     $sessionid = $loader->getsessionid(); }  if (strcasecmp($method, "extract") == 0) {     $extractor = new elextract();     global $sessionid;     $extractor->extract($sessionid); //$session id reason still ' ' here }

the sequence of requests client load followed extract. can tell me why $sessionid variable may not getting updated right?

you don't have declared global $... unless you're in function. block (if, while, ...) have same scope line before.

i don't know want do, have keep $sessionid content in real session, like:

<?php session_start(); $loader = new elload(); $_session['id'] = ''; $method = $_request['m']; if (strcasecmp($method, "getfile") == 0) {     $loader->load($file['text']);     $_session['id']  = $loader->getsessionid(); }  if (strcasecmp($method, "extract") == 0) {     $extractor = new elextract();     $extractor->extract($_session['id']); //$session id reason still ' ' here }

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