[wp-trac] [WordPress Trac] #30257: wpdb::get_var() returns NULL for existing values that are empty strings

[WordPress Trac]

#30257: wpdb::get_var() returns NULL for existing values that are empty strings
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 Reporter:  tyxla         |       Owner:
     Type:  defect (bug)  |      Status:  closed
 Priority:  normal        |   Milestone:
Component:  Database      |     Version:  0.71
 Severity:  normal        |  Resolution:  wontfix
 Keywords:  has-patch     |     Focuses:
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Comment (by nacin):

 This odd quirk in `get_var()` is also why we use `get_row()` for a single
 field in many other places, such as `get_option()`, `get_site_option()`,
 `get_metadata()`, etc.

 I bet we could change it and few would notice... but @pento is also right
 that it would break a lot.

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Ticket URL: <https://core.trac.wordpress.org/ticket/30257#comment:7>
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