修复 WordPress 找回密码提示“抱歉，该key似乎无效”

/**
 * 修复 WordPress 找回密码提示“抱歉，该key似乎无效”
 * http://www.wpdaxue.com/lost-password-error-invalidkey.html
 */
function reset_password_message( $message, $key ) {
	if ( strpos($_POST['user_login'], '@') ) {
		$user_data = get_user_by('email', trim($_POST['user_login']));
	} else {
		$login = trim($_POST['user_login']);
		$user_data = get_user_by('login', $login);
	}
	$user_login = $user_data->user_login;
	$msg = __('有人要求重设如下帐号的密码：'). "\r\n\r\n";
	$msg .= network_site_url() . "\r\n\r\n";
	$msg .= sprintf(__('用户名：%s'), $user_login) . "\r\n\r\n";
	$msg .= __('若这不是您本人要求的，请忽略本邮件，一切如常。') . "\r\n\r\n";
	$msg .= __('要重置您的密码，请打开下面的链接：'). "\r\n\r\n";
	$msg .= network_site_url("wp-login.php?action=rp&key=$key&login=" . rawurlencode($user_login), 'login') ;
	return $msg;
}
add_filter('retrieve_password_message', reset_password_message, null, 2);

$message .= '<' . network_site_url("wp-login.php?action=rp&key=$key&login=" . rawurlencode($user_login), 'login') . ">\r\n";

$message .= network_site_url("wp-login.php?action=rp&key=$key&login=" . rawurlencode($user_login), 'login') ;

$message .= '<' . network_site_url("wp-login.php?action=rp&key=$key&login=" . rawurlencode($user_login), 'login') . "#>\r\n";