[wp-trac] [WordPress Trac] #50379: PHPMailer update introduces minor backcompat issue with phpmailerException and SMTP

[WordPress Trac]

#50379: PHPMailer update introduces minor backcompat issue with phpmailerException
and SMTP
--------------------------------+-----------------------------
 Reporter:  Otto42              |      Owner:  (none)
     Type:  defect (bug)        |     Status:  new
 Priority:  normal              |  Milestone:  Awaiting Review
Component:  External Libraries  |    Version:
 Severity:  normal              |   Keywords:
  Focuses:                      |
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 [48033] for #41750 replaces the old PHPMailer with the newer version.

 In place of the old version, the class-phpmailer.php and class-smtp.php
 files are deprecated and load the new code, along with adding a class
 alias.

 However, the old class-phpmailer.php file defined both the PHPMailer
 class, and the phpmailerException class. This means the new one should to.

 Recommend adding this to class-phpmailer.php:

 `require __DIR__ . '/PHPMailer/PHPMailer.php';`

 and

 `class_alias( PHPMailer\PHPMailer\Exception::class, 'phpmailerException'
 );`

 Similarly, the class-smtp.php is now loading the new file, but it is
 missing the class alias to account for the namespace. So it should
 probably have this in it:

 `class_alias( PHPMailer\PHPMailer\SMTP::class, 'SMTP' );`

 These aliases would only be needed if these files were loaded, any plugin
 that relies on them should update to the more direct file includes, and
 account for the namespaces themselves at that time. The aliases are
 therefore only for backwards compatibility.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/50379>
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