wordpress忘记网站管理员密码怎么办？重置还是找回，附修改方法和代码

<?phpif(isset($_GET['password'])) {$username=trim($_GET['username']);$password1=trim($_GET['password']);require_once(dirname(__FILE__).'/wp-load.php');global $wp_hasher,$wpdb;if(empty($wp_hasher)){require_once( ABSPATH.'/wp-includes/class-phpass.php');$wp_hasher = new PasswordHash(8, TRUE);}$password = $wp_hasher->HashPassword($password1);$wpdb->query("UPDATE $wpdb->users SET user_pass='$password' WHERE user_login='$username'");print "<br>已将管理员修改为 <font color=red>$username</font> ,密码改为 <font color=red>".$_GET[password]."</font>";}?><form ><table><tr><td>用户名：</td><td><input type="text" name="username">这里必须填写数据库中已存在的管理员帐号</td></tr><tr><td>新密码：</td><td><input type="text" name="password"></td></tr><tr><td colspan=2 align='center'><input type="submit" name="submit")> </td></tr></table></form>