使用PEAR邮件包发送邮件时发生错误

Question

我试图通过PHP邮件包发送邮件，我在这里有两个场景，第一种情况下邮件正常发送没有任何错误，但在第二种情况下我收到错误消息。

方案1：

文件名：testmail.php

<?php 
require_once "Mail.php"; 

$from = "erp@askspidy.com"; 
$to = "support@askspidy.com"; 
$subject = "Landing Page Enquiry From -"; 
$body = "Hello just testing"; 

$host = "ssl://mail.askspidy.com"; 
$port = "465"; 
$username = "support@askspidy.com"; 
$password = "askspidy@1234"; 

$headers = array ('From' => $from, 
    'To' => $to, 
    'Subject' => $subject, 
    'MIME-Version' => 1, 
    'Content-type' => 'text/html;charset=iso-8859-1' 
    ); 

$smtp = Mail::factory('smtp', 
    array ('host' => $host, 
    'port' => $port, 
    'auth' => true, 
    'username' => $username, 
    'password' => $password)); 

$mail = $smtp->send($to, $headers, $body); 

if (PEAR::isError($mail)) { 
    echo("<p>" . $mail->getMessage() . "</p>"); 
    } else { 
    echo("<p>Message successfully sent!</p>"); 
    } 
?> 

如果我直接运行在URL文件，则邮件没有任何错误发送。

方案2： 文件名：sendmail.php

<?php 


    function send_mail($subject,$body) 
    { 
     require_once "Mail.php"; 

     $from = "erp@askspidy.com"; 
     $to = "support@askspidy.com"; 

     $host = "ssl://mail.askspidy.com"; 
     $port = "465"; 
     $username = "support@askspidy.com"; 
     $password = "askspidy@1234"; 

     $headers = array ('From' => $from, 
      'To' => $to, 
      'Subject' => $subject, 
      'MIME-Version' => 1, 
      'Content-type' => 'text/html;charset=iso-8859-1' 
      ); 

     $smtp = Mail::factory('smtp', 
      array ('host' => $host, 
      'port' => $port, 
      'auth' => true, 
      'username' => $username, 
      'password' => $password)); 


     $mail = $smtp->send($to, $headers, $body); 

    } 

?> 

现在我打电话从不同的文件中像这样

文件名此send_mail功能：服务/ process.php

<?php 

require_once("../sendmail.php"); 

$subject="Landing page enquiry"; 
$email_body="Hello Just Testing! "; 

send_mail($subject,$email_body); 

?> 

当这个文件被执行到浏览器中，我在网上收到错误消息

send_mail($subject,$email_body); 

错误：

Warning: include_once(Net/SMTP.php): failed to open stream: No such file or directory in /usr/local/lib/php/Mail/smtp.php on line 348 

Warning: include_once(): Failed opening 'Net/SMTP.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /usr/local/lib/php/Mail/smtp.php on line 348 

Fatal error: Class 'Net_SMTP' not found in /usr/local/lib/php/Mail/smtp.php on line 349 

在场景1中一切正常，那么为什么在方案2中我得到这个错误，我认为是有问题的路径，但我不知道应该是什么路径，我应该在哪里包含它。

文件夹结构：

包含在文件邮件代码/ smtp.php

require_once "Net/SMTP.php"; 

注：我在交友帐户和done已经手动安装PEAR包在php.ini文件中没有设置

Answer 1

新增目录名（FILE）的路径名称和它的工作

require_once dirname(__FILE__)."/Net/SMTP.php"; 

Answer 2

你到处都可以在代码中使用__DIR__的目录路径为当前文件

require_once __DIR__ . "/Net/SMTP.php";