WP_Post::__isset() WordPress Method
The WP_Post::__isset() method is used to check if a certain post property exists. This is useful for checking if a post has a certain custom field set, for example.
WP_Post::__isset( string $key ) #
Isset-er.
Parameters
- $key
(string)(Required)Property to check if set.
Return
(bool)
Source
File: wp-includes/class-wp-post.php
public function __isset( $key ) {
if ( 'ancestors' === $key ) {
return true;
}
if ( 'page_template' === $key ) {
return true;
}
if ( 'post_category' === $key ) {
return true;
}
if ( 'tags_input' === $key ) {
return true;
}
return metadata_exists( 'post', $this->ID, $key );
}
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Changelog
| Version | Description |
|---|---|
| 3.5.0 | Introduced. |