[wp-trac] [WordPress Trac] #51699: The only correct method to check for existence of option

[WordPress Trac]

#51699: The only correct method to check for existence of option
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 Reporter:  ttodua              |       Owner:  (none)
     Type:  defect (bug)        |      Status:  new
 Priority:  normal              |   Milestone:  Awaiting Review
Component:  Options, Meta APIs  |     Version:
 Severity:  normal              |  Resolution:
 Keywords:                      |     Focuses:
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Changes (by SergeyBiryukov):

 * component:  General => Options, Meta APIs


Comment:

 Thanks for the ticket!

 Just noting that
 [https://developer.wordpress.org/reference/functions/get_option/
 get_option()] has an optional `$default` argument, which serves exactly
 this purpose, it's a default value to return if the option does not exist.

 So the existence could be checked with a snippet like this:
 {{{
 if ( 'not-exists' === get_option( 'my_option', 'not-exists' ) ) {
         echo 'The option does not exist.';
 }
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/51699#comment:2>
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