Required parameter $key_type follows optional parameter $data in

Question

my website ( wordpress ) is not displayed and the debug mode lets this appear

Required parameter $key_type follows optional parameter $data

service.php lines

    public function transform_data_to_our_format( $data = array(), $key_type, $exclude_keys = array() ) {
        if ( ! isset( $this->data_keys[ $key_type ] ) ) {
            return array();
        }

        return self::$_->array_transform( $data, $this->data_keys[ $key_type ], '<-', $exclude_keys );
    }

    /**
     * Transforms an array from the service provider's data format to our data format.
     *
     * @param array  $data         The data to be transformed.
     * @param string $key_type     The type of data. This corresponds to the key_type in {@link self::data_keys}.
     * @param array  $exclude_keys Keys that should be excluded from the transformed data.
     *
     * @return array
     */
    public function transform_data_to_provider_format( $data = array(), $key_type, $exclude_keys = array() ) {
        if ( ! isset( $this->data_keys[ $key_type ] ) ) {
            return array();
        }

        return self::$_->array_transform( $data, $this->data_keys[ $key_type ], '->', $exclude_keys );
    }

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Do you have any idea?

By including = array() it is essentially saying that is optional. However, optional should in theory be at the end and required should be together at the beginning. An easy solution if you know $key_type is a string is try **$key_type = ""** that would make it optional even through where it is called probably always fills it in — imvain2, May 03 '23 at 21:52
Change this **$data = array(), $key_type, $exclude_keys = array()** to **$data = array(), $key_type = "", $exclude_keys = array()** — imvain2, May 03 '23 at 21:58

Required parameter $key_type follows optional parameter $data in

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