Description:
------------
hi, when i create a context inside a function i see a memory leak, but when i create it in the main source code line, i don´t see it...
please check the script..

i think the problem is something that don´t leave memory get back when destroying context variable

Test script:
---------------
memory leak:
<?php
function g(){
        $context=stream_context_create(array('http'=>array('timeout'=>1)));
        $ret=file_get_contents('http://172.17.0.5/not_found',0,$context);
        unset($context);
        return($ret);
}
        $base=memory_get_usage();
        while(1){
                g();
                usleep(50000);
                echo    (memory_get_usage()-$base)."\n";
// memory get bigger and bigger here....
        }
?>

memory leak too:
<?php
        $base=memory_get_usage();
        while(1){
                $context= stream_context_create(array('http'=>array('timeout'=>1)));
                $ret=file_get_contents('http://172.17.0.5/not_found',0,$context);
                usleep(50000);unset($ret,$context);
                echo    (memory_get_usage()-$base)."\n";
// memory get bigger and bigger...
        }
?>


nice:
<?php
        $base=memory_get_usage();
        $context= stream_context_create(array('http'=>array('timeout'=>1)));
        while(1){
                $ret=file_get_contents('http://172.17.0.5/not_found',0,$context);
                usleep(50000);unset($ret);
                echo    (memory_get_usage()-$base)."\n";
// memory is nice here...
        }
?>



Expected result:
----------------
NICE:
Warning...
3552
Warning...
3552
Warning...
3552
Warning...
3552
Warning...
3552
Warning...
3552


MEMORY LEAK:
Warning...
40120
Warning...
41344
Warning...
42568
Warning...
43792


Actual result:
--------------
well i think that others fields explain...

MEMORY LEAK:
Warning...
40120
Warning...
41344
Warning...



(+- 1224 per while interaction)

i don´t know how to solve this, unset don´t work, =null don´t work, and i don´t find a function to destroy contexts...