SMTP Error: Could not connect to SMTP host.
我用网页运行时正常,能发送,用命令运行php文件时报错,主要代码经检查无误,如下
function sendmail($setEmail, $setName, $body, $subject) {<br /> require_once("PHPMail/phpmailer.php");<br /> $mail = new PHPMailer ( true ); // the true param means it will throw exceptions on errors, which we need to catch<br /> $mail->IsSMTP (); // telling the class to use SMTP<br /> try {<br /> $mail->SMTPAuth = true; // enable SMTP authentication<br /> $mail->SMTPSecure = SBT_SSL; // sets the prefix to the servier<br /> $mail->Host = SBT_SMTP_HOST; // sets GMAIL as the SMTP server<br /> $mail->Port = SBT_SMTP_PORT; // set the SMTP port for the GMAIL server<br /> $mail->Username = SBT_SMTP_USER; // GMAIL username<br /> $mail->Password = SBT_SMTP_PASS; // GMAIL password<br /> $mail->AddReplyTo ( SBT_MAIL_FROM, SBT_MAIL_FROM_NAME );<br /> $mail->AddAddress ( $setEmail, $setName );<br /> $mail->SetFrom (SBT_SMTP_USER,SBT_SMTP_USER); //sender name<br /> $mail->Subject = $subject; <br /> $mail->MsgHTML ( $body ); <br /> if (! $mail->Send ()) {//(这边没报错)<br /> echo "Message could not be sent. <p>";<br /> echo "Mailer Error: " . $mail->ErrorInfo;<br /> exit ();<br /> } <br /> } catch ( phpmailerException $e ) {<br /> echo $e->errorMessage (); //Pretty error messages from PHPMailer(就是这边输出错误的)<br /> } catch ( Exception $e ) {<br /> echo $e->getMessage (); //Boring error messages from anything else!<br /> }<br /> }
问下是什么原因,目的是为了可以用linux计划任务来执行该PHP文件
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错误代码呢?
------解决方案--------------------
php --ini 一下,看使用的ini是否和作为apache模块运行的php一致.
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不可能,$mail->IsSMTP ();这个表明你已经设置了smtp发送了.
你现在的主要问题是找找看为什么socket连接不了smtp服务器.
防火墙也有可能.
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wamp环境,应该是共用一份ini文件的.想再一次确定的话,php网页输出phpinfo(),看使用的ini文件,是否和这个一致.
命令:telnet smtp.gmail.com 465 ,确定能连接成功?
------解决方案--------------------
检查一下防火墙,另外再检查一下发送图片附件的代码
------解决方案--------------------
telnet都不行,肯定是你防火墙禁止了访问

PHP remains a powerful and widely used tool in modern programming, especially in the field of web development. 1) PHP is easy to use and seamlessly integrated with databases, and is the first choice for many developers. 2) It supports dynamic content generation and object-oriented programming, suitable for quickly creating and maintaining websites. 3) PHP's performance can be improved by caching and optimizing database queries, and its extensive community and rich ecosystem make it still important in today's technology stack.

In PHP, weak references are implemented through the WeakReference class and will not prevent the garbage collector from reclaiming objects. Weak references are suitable for scenarios such as caching systems and event listeners. It should be noted that it cannot guarantee the survival of objects and that garbage collection may be delayed.

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The PHP community provides rich resources and support to help developers grow. 1) Resources include official documentation, tutorials, blogs and open source projects such as Laravel and Symfony. 2) Support can be obtained through StackOverflow, Reddit and Slack channels. 3) Development trends can be learned by following RFC. 4) Integration into the community can be achieved through active participation, contribution to code and learning sharing.

PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.

PHP is not dying, but constantly adapting and evolving. 1) PHP has undergone multiple version iterations since 1994 to adapt to new technology trends. 2) It is currently widely used in e-commerce, content management systems and other fields. 3) PHP8 introduces JIT compiler and other functions to improve performance and modernization. 4) Use OPcache and follow PSR-12 standards to optimize performance and code quality.

The future of PHP will be achieved by adapting to new technology trends and introducing innovative features: 1) Adapting to cloud computing, containerization and microservice architectures, supporting Docker and Kubernetes; 2) introducing JIT compilers and enumeration types to improve performance and data processing efficiency; 3) Continuously optimize performance and promote best practices.


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