- trim: documentation ( source)
<?php
//$link = mysql_connect('localhost', 'root', '') or die('ERROR: ' . mysql_error());
//$sel = mysql_select_db(DB_NAME, $link) or die('ERROR: ' . mysql_error());
echo 'Hello World';
echo mysql_real_escape_string(trim($_SERVER['HTTP_USER_AGENT']));
echo 'Hello World';
?>