[wp-trac] [WordPress Trac] #63219: Minor Code Improvement: Adjust $mailserver_url Condition Order in wp-mail.php

[WordPress Trac]

#63219: Minor Code Improvement: Adjust $mailserver_url Condition Order in wp-
mail.php
--------------------------+-----------------------------
 Reporter:  dilipbheda    |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Mail          |    Version:
 Severity:  normal        |   Keywords:  has-patch
  Focuses:                |
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 Reordered the condition in the `$mailserver_url` check to prioritize the
 `empty()` check.

 Reason for Change:
 - Improves readability and logic consistency by checking for an empty
 value first.
 - Prevents unnecessary string comparison if `$mailserver_url` is empty.

 It follows a common best practice of checking for an empty value before
 doing a specific comparison.

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Ticket URL: <https://core.trac.wordpress.org/ticket/63219>
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