[wp-trac] [WordPress Trac] #42812: Use MySQLi when available by default

[WordPress Trac]

#42812: Use MySQLi when available by default
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 Reporter:  dd32                          |       Owner:  dd32
     Type:  enhancement                   |      Status:  closed
 Priority:  normal                        |   Milestone:  4.9.2
Component:  Database                      |     Version:
 Severity:  normal                        |  Resolution:  fixed
 Keywords:  has-patch commit fixed-major  |     Focuses:
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Comment (by maizey):

 I just spent the last 4 hours trying to figure out what caused many of my
 websites to break and fixing it. Many plugins rely on the open MySQL-
 Connection and cannot detect that suddenly that was switched to MySQLi. I
 also used the open MySQL-Connection for many things.

 Thanks to @rhirschfeld who probably saved me another 4 hours with the hint
 on defining WP_USE_EXT_MYSQL.

 (Yes i created an account for this. This issue is big.)

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Ticket URL: <https://core.trac.wordpress.org/ticket/42812#comment:8>
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