WP_User::__isset( string $key )
Magic method for checking the existence of a certain custom field.
Description Description
Parameters Parameters
- $key
-
(string) (Required) User meta key to check if set.
Return Return
(bool) Whether the given user meta key is set.
Source Source
File: wp-includes/class-wp-user.php
public function __isset( $key ) {
if ( 'id' == $key ) {
_deprecated_argument(
'WP_User->id',
'2.1.0',
sprintf(
/* translators: %s: WP_User->ID */
__( 'Use %s instead.' ),
'<code>WP_User->ID</code>'
)
);
$key = 'ID';
}
if ( isset( $this->data->$key ) ) {
return true;
}
if ( isset( self::$back_compat_keys[ $key ] ) ) {
$key = self::$back_compat_keys[ $key ];
}
return metadata_exists( 'user', $this->ID, $key );
}
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Changelog Changelog
| Version | Description |
|---|---|
| 3.3.0 | Introduced. |