[wp-trac] [WordPress Trac] #28170: Add utility method for casting a var to boolean

[WordPress Trac]

#28170: Add utility method for casting a var to boolean
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 Reporter:  wonderboymusic  |      Owner:
     Type:  enhancement     |     Status:  new
 Priority:  normal          |  Milestone:  4.0
Component:  General         |    Version:  trunk
 Severity:  normal          |   Keywords:  has-patch
  Focuses:                  |
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 Because PHP can be configured without `--filter`, it is not 100% safe to
 use `filter_var()`. This is problematic for casting `"false"` to `false`,
 as PHP always casts it to `true`. `FILTER_VALIDATE_BOOLEAN` fixes this,
 but it may not be available.

 Proposed new function: `wp_validate_boolean()`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/28170>
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