<?php
error_reporting(0);
@ini_restore("safe_mode");
@ini_restore("open_basedir");
@ini_restore("safe_mode_include_dir");
@ini_restore("safe_mode_exec_dir");
@ini_restore("disable_functions");
@ini_restore("allow_url_fopen");
@ini_set('error_log',NULL);
@ini_set('log_errors',0);

print "disable_functions: ".@ini_get('disable_functions')."<br />";
print "open_basedir: ".@ini_get('open_basedir')."<br />";
print "safe_mode: ".@ini_get('safe_mode')."<br />";

function test_exec(){
        if(@function_exists('exec')){
                return "exec";
        }elseif(@function_exists('shell_exec')){
                return "shell_exec";
        }elseif(@function_exists('system')){
                return "system";
        }elseif(@function_exists('passthru')){
                return "passthru";
        }elseif(@function_exists('popen')){
                return "popen";
        }elseif(@function_exists('proc_open')){
                return "proc_open";
        }elseif(@function_exists('pcntl_exec')||@function_exists('pcntl_fork')){
                return "pcntl_exec";
        }else{
                return NULL;
        }
}
print "execution style: ".test_exec();
?>