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Summery Summery
Checks if a parameter exists in the request.
Syntax Syntax
Description Description
This allows distinguishing between an omitted parameter, and a parameter specifically set to null.
Parameters Parameters
- $key
-
(Required) Parameter name.
Return Return
(bool) True if a param exists for the given key.
Source Source
File: wp-includes/rest-api/class-wp-rest-request.php
$order = $this->get_parameter_order();
foreach ( $order as $type ) {
if ( is_array( $this->params[ $type ] ) && array_key_exists( $key, $this->params[ $type ] ) ) {
return true;
}
}
return false;
}
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Changelog Changelog
| Version | Description |
|---|---|
| 5.3.0 | Introduced. |
