如何让此函数返回值?

时间:2012-05-16 07:22:06

标签: php function return-value

我已经复制粘贴了一个我正在尝试修改的函数。我想让它正确处理错误。现在,$smtpResponse不会返回任何值。当我在函数中回显值时,它们会显示,但$smtpResponse不会产生任何结果,也不会发送true或false值。

我也试过回复“失败”和“成功”,但他们没有表现出来。 $response没有显示,但“它有效!”确实。为什么函数不返回任何东西?

我正在尝试输出如下:

//Send e-mail  
$repsonse = authSendEmail($from, $namefrom, $sendto,"", $subject,$message);

//Report success/failure
echo $response;

The culprit: 

function authSendEmail($from, $namefrom, $to, $nameto, $subject, $message) {
    //Connect to the host on the specified port  
    $smtpConnect = fsockopen($smtpServer, $port, $errno, $errstr, 60);  
    $smtpResponse = fgets($smtpConnect, 515);  

    if(empty($smtpConnect)) {  
        $output = "Failed to connect: $smtpResponse";  
        echo $output;
        return "Fail";
         //return false; 
         //used to read 'return $output' 
    }  

    else {  
        $logArray['connection'] = "Connected: $smtpResponse";  
    }  

    //Request Auth Login  
    fputs($smtpConnect,"AUTH LOGIN" . $newLine);  
    $smtpResponse = fgets($smtpConnect, 515);  
    $logArray['authrequest'] = "$smtpResponse";  

    if(!$smtpResponse) {
        return "Fail";
    }

    //Send username  
    fputs($smtpConnect, base64_encode($username) . $newLine);  
    $smtpResponse = fgets($smtpConnect, 515);  
    $logArray['authusername'] = "$smtpResponse";  

    if(!$smtpResponse) {
        return "Fail";
    }

    //Send password  
    fputs($smtpConnect, base64_encode($password) . $newLine);  
    $smtpResponse = fgets($smtpConnect, 515);  
    $logArray['authpassword'] = "$smtpResponse";  

    if(!$smtpResponse) {
        return "Fail";
    }

    //Say Hello to SMTP  
    fputs($smtpConnect, "HELO $localhost" . $newLine);  
    $smtpResponse = fgets($smtpConnect, 515);  
    $logArray['heloresponse'] = "$smtpResponse";  

    if(!$smtpResponse) {
        return "Fail";
    }

    //Email From  
    fputs($smtpConnect, "MAIL FROM: $from" . $newLine);  
    $smtpResponse = fgets($smtpConnect, 515);  
    $logArray['mailfromresponse'] = "$smtpResponse";  

    if(!$smtpResponse) {
        return "Fail";
    }

    //Email To  
    fputs($smtpConnect, "RCPT TO: $to" . $newLine);  
    $smtpResponse = fgets($smtpConnect, 515);  
    $logArray['mailtoresponse'] = "$smtpResponse";  

    if(!$smtpResponse) {
        return "Fail";
    }

    //The Email  
    fputs($smtpConnect, "DATA" . $newLine);  
    $smtpResponse = fgets($smtpConnect, 515);  
    $logArray['data1response'] = "$smtpResponse";  

    if(!$smtpResponse) {
        return "Fail";
    }

    //Construct Headers  
    $headers = "MIME-Version: 1.0" . $newLine;  
    $headers .= "Content-type: text/html; charset=iso-8859-1" . $newLine;  
    $headers .= "To: ".$nameto." <".$to.">" . $newLine;  
    $headers .= "From: ".$namefrom." <".$from.">" . $newLine;  
    fputs($smtpConnect, "Subject: $subject\n$headers\n\n $message \n.\n");  
    $smtpResponse = fgets($smtpConnect, 515);  
    $logArray['data2response'] = "$smtpResponse";  

    if(!$smtpResponse) {
        return "Fail";
    }

    // Say Bye to SMTP  
    fputs($smtpConnect,"QUIT" . $newLine);   
    $smtpResponse = fgets($smtpConnect, 515);  
    $logArray['quitresponse'] = "$smtpResponse";   

    if(!$smtpResponse) {
        return "Fail";
    }

    echo "It worked!";
    return "Success"; 
    //insert var_dump here -- uncomment out the next line for debug info
    //var_dump($logArray);
}  

2 个答案:

答案 0 :(得分:2)

:)你有一个错字

//Send e-mail  
$repsonse = authSendEmail($from, $namefrom, $sendto,"", $subject,$message);

//Report success/failure
echo $response;

您返回$ repsonse 并回显$ 回复

并记录在案。复制/粘贴别人的代码将不会带你到任何地方。如果你想学习自己编写程序代码,或者你真的需要复制/粘贴,试着去理解你复制/粘贴的内容。我不是故意只是给你一个忠告。祝你好运!

答案 1 :(得分:0)

也许这太简单了,但你真的有这样一句话:

//Report success/failure echo $response;

回声只是评论的一部分,你需要把它放在一个新的界限上。

此外,您应该在退出函数之前关闭该套接字连接。

此外,成功时返回布尔值true,失败时返回false可能更好,恕我直言。