[wp-trac] [WordPress Trac] #26308: After the update from 3.5 to 3.7 I get Warning: preg_split() expects parameter 2 to be string, array given on search

[WordPress Trac]

#26308: After the update from 3.5 to 3.7 I get Warning: preg_split() expects
parameter 2 to be string, array given on search
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 Reporter:  goranpejovic  |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  General       |     Version:  3.7.1
 Severity:  normal        |  Resolution:
 Keywords:                |
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Comment (by SergeyBiryukov):

 The warning comes from the secong `preg_split()` in the custom taxonomy
 handling block in `WP_Query::parse_tax_query()`: [source:tags/3.7.1/src
 /wp-includes/query.php#L1738].

 Doesn't appear to be a regression. The code was introduced in [15613],
 modified in [15731], [15732], [15860], [15874], and [16259].

 The patch on #17737 solves the issue by discarding a custom taxonomy query
 var if it's an array instead of a string.

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Ticket URL: <http://core.trac.wordpress.org/ticket/26308#comment:2>
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