public function get_meta( $key ) {
		$metadata = $this->get_metadata();

		if ( ! array_key_exists( $key, $metadata ) ) {
			return;
		}

		return $metadata[ $key ];
	}
public function get_meta( $key ) {
		$metadata = $this->get_metadata();

		if ( ! array_key_exists( $key, $metadata ) ) {
			return;
		}

		return $metadata[ $key ];
	}
public function get_meta ( $ key ) { $ metadata = $ this -> get_metadata ( ) ; if ( ! array_key_exists ( $ key , $ metadata ) ) { return ; } return $ metadata [ $ key ] ; }
Get a metadata by meta key.

@param  string $key The metadata key.
@return mixed|null
Get a metadata by meta key .