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HomeBackend DevelopmentPHP TutorialWordPress中访客登陆实现邮件提醒的PHP脚本实例分享_PHP


登陆邮件提醒实现方法
前提是空间有邮件功能,测试有无邮件功能的方法:登录界面点击“忘记密码”,有邮件发到你邮箱就有邮件功能。

一、登录成功提醒
就像银行的登录提醒一样,如果有人登录了系统,就会发一封邮件到邮箱,提醒你有人登录了,如果当时不是你登录,就要引起警惕了。将以下代码放入主题的functions.php中:


/*****************************************************
 函数名称:wp_login_notify v1.0 by DH.huahua. 
 函数作用:有登录wp后台就会email通知博主
******************************************************/
function wp_login_notify()
{
  date_default_timezone_set('PRC');
  $admin_email = get_bloginfo ('admin_email');
  $to = $admin_email;
 $subject = '你的博客空间登录提醒';
 $message = '<p>你好!你的博客空间(' . get_option("blogname") . ')有登录!</p>' . 
 '<p>请确定是您自己的登录,以防别人攻击!登录信息如下:</p>' . 
 '<p>登录名:' . $_POST['log'] . '</p>' .
 '<p>登录时间:' . date("Y-m-d H:i:s") . '</p>' .
 '<p>登录IP:' . $_SERVER['REMOTE_ADDR'] . '</p>'; 
 $wp_email = 'no-reply@' . preg_replace('#^www\.#', '', strtolower($_SERVER['SERVER_NAME']));
 $from = "From: \"" . get_option('blogname') . "\" <$wp_email>";
 $headers = "$from\nContent-Type: text/html; charset=" . get_option('blog_charset') . "\n";
 wp_mail( $to, $subject, $message, $headers );
}
 
add_action('wp_login', 'wp_login_notify');

二、登录失败提醒
有人尝试登陆你的系统,但是没有成功,这种反复尝试的动作本身就需要被记录下来,发给博主,这样,只要有错误的登录,就会发一封邮件到自己的邮箱,将对方尝试的登录名和登录密码发送到你邮箱。将以下代码放入主题的functions.php中:

/*****************************************************
 函数名称:wp_login_failed_notify v1.0 by DH.huahua. 
 函数作用:有错误登录wp后台就会email通知博主
******************************************************/
function wp_login_failed_notify()
{
  date_default_timezone_set('PRC');
  $admin_email = get_bloginfo ('admin_email');
  $to = $admin_email;
 $subject = '你的博客空间登录错误警告';
 $message = '<p>你好!你的博客空间(' . get_option("blogname") . ')有登录错误!</p>' . 
 '<p>请确定是您自己的登录失误,以防别人攻击!登录信息如下:</p>' . 
 '<p>登录名:' . $_POST['log'] . '</p>' .
 '<p>登录密码:' . $_POST['pwd'] . '</p>' .
 '<p>登录时间:' . date("Y-m-d H:i:s") . '</p>' .
 '<p>登录IP:' . $_SERVER['REMOTE_ADDR'] . '</p>'; 
 $wp_email = 'no-reply@' . preg_replace('#^www\.#', '', strtolower($_SERVER['SERVER_NAME']));
 $from = "From: \"" . get_option('blogname') . "\" <$wp_email>";
 $headers = "$from\nContent-Type: text/html; charset=" . get_option('blog_charset') . "\n";
 wp_mail( $to, $subject, $message, $headers );
}
 
add_action('wp_login_failed', 'wp_login_failed_notify');

效果如下图所示,后面有个登录所在地是用qqwry.dat做了个查询

20151214174440293.png (427×347)

修改后台登录地址
插件法
不少插件可以实现这样的功能,比如Protected wp-login和Stealth Login Page,直接下载安装即可,这里不多介绍。

代码法
不想用插件的话,直接将下面的代码复制到当前主题的 functions.php 文件中:

//保护后台登录
function login_protection(){ 
  if($_GET['word'] != 'fuck')header('Location: http://blog.gimhoy.com/'); 
}
add_action('login_enqueue_scripts','login_protection'); 

这样只有打开 http://siteurl/wp-login.php?word=fuck,才会打开登录页,否则就会自动跳转到 http://blog.gimhoy.com/

但是博主这样做之后,邮箱里还是每天都收到很多登录失败的提醒邮件,于是采取了一个更加简单粗暴的方法:修改wp-login.php文件名

比如将wp-login.php修改成gimhoy-login.php,同时还要打开这个文件,将里面所有的wp-login.php替换成gimhoy-login.php。这样登录地址便成了http://siteurl/gimhoy-login.php.跟前面那个方法结合起来,就成了http://siteurl/gimhoy-login.php?word=fuck.

简单粗暴,目的达成。

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