PHP警告:include_once(Net/SMTP.php):无法打开流

use*_*151 2 php pear mail-mime

我想使用Gmail发送电子邮件.为此,我只运行以下命令

pear install Mail Mail_Mime
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我的php文件(filename.php)代码如下

<?php
  require_once "Mail.php";
  $from = 'from@gmail.com';
  $to = 'to@gmail.com';
  $subject = 'Hi!';
  $body = "Hi,\n\nHow are you?";
  $headers = array(
      'From' => $from,
      'To' => $to,
      'Subject' => $subject
  );
  $smtp = Mail::factory('smtp', array(
          'host' => 'ssl://smtp.gmail.com',
          'port' => '465',
          'auth' => true,
          'username' => 'from@gmail.com',
          'password' => 'password'
      ));
  $mail = $smtp->send($to, $headers, $body);
  if (PEAR::isError($mail)) {
      echo('<p>' . $mail->getMessage() . '</p>');
  } else {
      echo('<p>Message successfully sent!</p>');
  }
?>
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当我使用下面的命令运行这个"filename.php"

php filename.php
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我收到以下错误

PHP Warning:  include_once(Net/SMTP.php): failed to open stream: No such file or directory in /usr/share/pear/Mail/smtp.php on line 365
PHP Warning:  include_once(): Failed opening 'Net/SMTP.php' for inclusion (include_path='.:/usr/share/pear:/usr/share/php') in /usr/share/pear/Mail/smtp.php on line 365
PHP Fatal error:  Class 'Net_SMTP' not found in /usr/share/pear/Mail/smtp.php on line 366
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我正在使用CentOS 7.

use*_*151 10

现在它正在为我工​​作.我只是使用以下步骤来解决这个问题:

1. pear upgrade --force --alldeps http://pear.php.net/get/PEAR-1.10.1
2. pear clear-cache
3. pear update-channels
4. pear upgrade
5. pear upgrade-all
6. pear install Auth_SASL
7. pear install pear/Net_SMTP
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之后一切正常.

感谢大家.