開けませんでした '../vendor/autoload.php'

Question

私はphpmailerで電子メールを送信しようとしましたが、コードの結果は致命的です：require（）[function.require]：オープンに失敗しました '../ベンダー/ autoload.php '（include_path =' .; C：\ php \ pear '）にあります。 私の問題は何ですか？

<?php 
/** 
* This example shows making an SMTP connection with authentication. 
*/ 

//Import the PHPMailer class into the global namespace 
use PHPMailer\PHPMailer\PHPMailer; 

//SMTP needs accurate times, and the PHP time zone MUST be set 
//This should be done in your php.ini, but this is how to do it if you don't have access to that 
date_default_timezone_set('Etc/UTC'); 

require '../vendor/autoload.php'; 

//Create a new PHPMailer instance 
$mail = new PHPMailer; 
//Tell PHPMailer to use SMTP 
$mail->isSMTP(); 
//Enable SMTP debugging 
// 0 = off (for production use) 
// 1 = client messages 
// 2 = client and server messages 
$mail->SMTPDebug = 2; 
//Set the hostname of the mail server 
$mail->Host = 'mail.mehregantamin.ir'; 
//Set the SMTP port number - likely to be 25, 465 or 587 
$mail->Port = 25; 
//Whether to use SMTP authentication 
$mail->SMTPAuth = true; 
//Username to use for SMTP authentication 
$mail->Username = 'ali@mehregantamin.ir'; 
//Password to use for SMTP authentication 
$mail->Password = '*****'; 
//Set who the message is to be sent from 
$mail->setFrom('ali@mehregantamin.ir', 'First Last'); 
//Set an alternative reply-to address 
$mail->addReplyTo('replyto@example.com', 'First Last'); 
//Set who the message is to be sent to 
$mail->addAddress('vampire.programmer@gmail.com', 'John Doe'); 
//Set the subject line 
$mail->Subject = 'PHPMailer SMTP test'; 
//Read an HTML message body from an external file, convert referenced images to embedded, 
//convert HTML into a basic plain-text alternative body 
$mail->msgHTML(file_get_contents('contents.html'), dirname(__FILE__)); 
//Replace the plain text body with one created manually 
$mail->AltBody = 'This is a plain-text message body'; 
//Attach an image file 
//$mail->addAttachment('images/phpmailer_mini.png'); 

//send the message, check for errors 
if (!$mail->send()) { 
    echo 'Mailer Error: ' . $mail->ErrorInfo; 
} else { 
    echo 'Message sent!'; 
} 
?> 

Answer 1

phpmailerのドキュメントが言うようにあなたは、作曲を使用してパッケージをインストールする必要があります。

composer require PHPMailer/PHPMailer 

は、パッケージをインストールしてcomposer.jsonファイルを更新します。