[wp-trac] [WordPress Trac] #21663: Use mysqli for MySQL queries when available

[WordPress Trac]

#21663: Use mysqli for MySQL queries when available
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 Reporter:  scottconnerly     |       Owner:
     Type:  task (blessed)    |      Status:  new
 Priority:  normal            |   Milestone:  3.9
Component:  Database          |     Version:  3.5
 Severity:  normal            |  Resolution:
 Keywords:  has-patch commit  |     Focuses:
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Comment (by benjamin4):

 I'm using Zend Server 6.1.0 (Free Version).

 I agree it is an configuration issue, however IMO it took me too much time
 to figure this out.
 If I hadn't enabled WP_DEBUG, I wouldn't have seen the notice of
 mysqli_real_connect(), but only the generic "Error establishing a database
 connection"-Site, where sockets aren't even mentioned.

 So instead of preventing the error (which we can't), we should improve its
 documentation. My suggestions:
 - wp-config.php could include Syntax examples for valid uses of DB_HOST
 - The error site on /wp-admin/ could link to a specific troubleshooting
 site on Codex instead of linking to the forum in general.
 - It could also mention the recent move to Mysqli as possible cause.

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Ticket URL: <https://core.trac.wordpress.org/ticket/21663#comment:217>
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