Piwigo integrates a powerful mailing function compatible with standard PHP mail() function and SMTP servers. It is base on PHPMailer and Emogrifier libraries.

There are four functions to send emails:

• pwg_mail() - the main one
• pwg_mail_admins() - to send emails to all admins
• pwg_mail_groups() - to send emails to a specific group
• pwg_mail_notification_admins() - dedicated to administrative emails

pwg_mail() takes three parameters, for basic usage you only need to use the first and the second one.

The first parameter is the recipient(s) of the mail, it can be either:

• a single email: name@domain.com
• a single email with associated name: Name <name@ domain.com>
• a comma separated list of emails (with or without associated names)
• an array of hashmaps containing email and name keys:

$recipients = array(
  array('name' => 'Name 1', 'email' => 'name1@domain.com'),
  array('name' => 'Name 2', 'email' => 'name2@domain.com'),
);

The second parameter is an array of options:

• from - sender of the email [defaults to webmaster email and gallery name]
• Cc - carbon copy recipients as array [defaults to empty]
• Bcc - blind carbon copy recipients as array [defaults to empty]
• subject - subject of the email [defaults to 'Piwigo']
• content - content of the email
• content_format - text/html or text/plain [defaults to 'text/plain']
• email_format - text/html or text/plain [defaults to 'text/html'] will be forced to 'text/plain' if webmaster disabled HTML emails
• theme - clear or dark [defaults to $conf['mail_theme']]
• mail_title - main title in email corpus [defaults to $conf['gallery_title']]
• mail_subtitle - subtitle in email corpus [defaults to subject]]

If you set subject to [something] something else and leave mail_title and mail_subtitle empty, you will get:
mail_title = something
mail_subtitle = something else
This is for backward compatibility only.

include_once(PHPWG_ROOT_PATH . 'include/functions_mail.inc.php');
 
pwg_mail(
  array(
    'name' => 'Username',
    'email' => 'name@domain.com',
    ),
  array(
    'content' => $content
    'content_format' => 'text/plain',
    'subject' => 'Sample mail',
    )
  );