load average

Warning: exec system passthru set_time_limit error_log ini_alter ini_set dl pfsockopen openlog syslog readlink symlink link leak fsockopen proc_open() has been disabled for security reasons in /3w/wz.cz/s/skaff/links/links.php on line 17
Load average:

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jak sem spravne pochopil, je to asi z bezpecnostnich duvodu zakazene co? neslo by to udelat? ma to vypisovat vytizeni pocitace.

SKRIPT:

<?php

$load = explode("average: ", exec("uptime"));

echo "Load average: $load[1]";

?>
na wz je afaik zakazana funkce exec()
Je zakazana.