& lt; Tabpanel div role="" id=" Section4 & gt;" 
 

<script SRC="https://www.google.com/recaptcha/api.js" async defer> </script> 
























 
 
 * & lt;/td> 
 Name: & lt;/td> 
  
 
 
 
 
 
 
 * & lt;/td> 
 Email: & lt;/td> 
  
 
 
 
 
 
 
 * & lt;/td> 
 Company: & lt;/td> 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 



$(function () {
$(". Registerform "). Validform ({
Tiptype: 2, 
Postonce: true, 
}); 
}) 
</script> 

 & lt; ? PHP the require (" SMTP. PHP "); 



//to use 163 mailbox server 
//$smtpserver="smtp.163.com"; 
$smtpserver="ssl://smtp.163.com"; 
//163 mailbox server port 
$smtpserverport=465; 
//such as 163 server email accounts 
$smtpusermail="account @ 163. com"; 
//the recipient mailbox $smtpemailto="$_POST [k_email]"; 

$smtpemailto="$_POST [k_email]"; 

//your email accounts (remove @ 163. com) 
$smtpuser="account";//SMTP server user account 
//your email password 
$smtppass="password"; The user password//SMTP server, open authorization code, please fill in the authorization code 
//
 email subject$mailsubject="Down the PDF"; 
//email name="name" name="email" name="message" 
//$mailbody="name: $_POST [k_name] \ r \ n email: $_POST [k_email] \ r \ n company: $_POST [k_cp] \ r \ n download links: & lt; A href='HTTP://https://bbs.csdn.net/topics/$_POST/k_pdf & gt; $_POST [k_pdf]  "; 
$mailbody="Name: $_POST \ r \ [k_name] nEmail: $_POST [k_email] \ r \ ncompany: $_POST [k_cp] \ r \ n 'download=' filename '& gt; $_POST [ktitle]  "; 

//email format (HTML/TXT), TXT to text email 
$mailtype="HTML"; 
//here is a true said use authentication, otherwise do not use the authentication. 
$SMTP=new SMTP ($smtpserver, $smtpserverport, true, $smtpuser, $smtppass); 
//whether the show to send debugging information 
$SMTP - & gt; The debug=FALSE; 
//email 
If ($SMTP - & gt; The sendmail ($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype)) 


//Google captcha 

$post_data=https://bbs.csdn.net/topics/array (
'secret'=& gt; '6 lcxxuizaaaaafbcgcx_u8impio3wys0xjuzqaac' 
'response'=& gt; $_POST [" g - with recaptcha - response "] 
); 

$recaptcha_json_result=send_post (' https://www.google.com/recaptcha/api/siteverify ', $post_data); 
$recaptcha_result=json_decode ($recaptcha_json_result); 


?> 

 & lt; ? PHP 
The class SMTP 
{
/* Public Variables */
Var $smtp_port; 
Var $time_out; 
Var $host_name; 
Var $log_file; 
Var $relay_host; 
Var $debug; 
Var $auth; 
Var $user. 
Var $pass; 
/* Private Variables */
Var $sock; 
Constractor/* */
Function SMTP ($relay_host="", $smtp_port=465, $auth=false, $user and $pass) 
{
$this - & gt; The debug=FALSE; 
$this - & gt; Smtp_port=$smtp_port; 
$this - & gt; Relay_host=$relay_host; 
$this - & gt; Time_out=30;//is 2 in fsockopen () 
$this - & gt; Auth=$auth.//auth 
$this - & gt; User=$user; 
$this - & gt; Pass=$pass; 
$this - & gt; Host_name="localhost";//is informs the HELO command in 
$this - & gt; Log_file=""; 
$this - & gt; The sock=FALSE; 
} 
/* the Main Function */
nullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnull