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Installing “Composer” and “PHPMailer” on N0C


This article explains how to send emails with a PHP application using PHPMailer. Before doing so, however, you must use Composer to download PHPMailer and automatically create an autoloader file.

Note: PlanetHoster technical support is often asked on the PlanetHoster forum about how to proceed, hence this article.

Note:The PlanetHoster Glossary contains explanations on multiple topics and can be consulted to clarify certain terms.

Step 1: Installation of Composer

First of all, you need to connect to the N0C account via SSH, as explained in the article Creating an SSH Key and Connecting to an Account. Then, you can proceed with the installation.

Note: In the following commands, “user” must be replaced by the username of the N0C account in question.

  1. Start by entering the following commands:

php -r "readfile('https://getcomposer.org/installer');" > composer.php

php composer.php

  1. The following message will appear:

All settings correct for using Composer
Composer (version 2.3.4) successfully installed to: /home/zjpqumjq/composer.phar
Use it: php composer.phar

  1. Type this line of code:

nano .bash_profile

  1. Add this line of code:

alias composer="php /home/user/composer.phar"

  1. Finally, reload the bash_profile, which will allow us to invoke the command without having to specify its path:

source ~/.bash_profile

  1. Now you just have to type “composer“:

Step 2: Installation of PHPMailer

Make sure that you have installed Composer and that you are still connected via SSH, as explained before.

  1. Create the desired folder for PHPMailer:

mkdir mail_app

  1. Move to the active current working directory (CWD):

cd mail_app

  1. Install PHPMailer with the Composer command:

composer require phpmailer/phpmailer

  1. Here is the output of Composer for the installation of php_mailer:
  1. Here, there is nothing to reload normally. It is in the script that we must indicate the path to PHPMailer:


Updated on April 18, 2022

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