Here is the matter:
ini_set(\'display_errors\', \'1\');
ini_set(\'safe_mode\', \'0\');
ini_set(\'allow_url_fopen\', \'1\');
ini_set(\'allow_url_include\', \'1\');
if you get this message in zabbix interface "ini_set(): Use of mbstring.internal_encoding is deprecated"
simply go to file vi /usr/local/share/zabbix/include/locales.inc.php and commet the line
# ini_set('mbstring.internal_encoding', 'UTF-8');"
restart httpd & zabbix-server daemons , then try.. thats it.!