getgrav/grav · error · RuntimeException

json_last_error_msg()

Error message

json_last_error_msg()

What it means

Error "json_last_error_msg()" thrown in getgrav/grav.

Source

Thrown at system/src/Grav/Framework/Psr7/Response.php:63

     *
     * Note: This method is not part of the PSR-7 standard.
     *
     * This method prepares the response object to return an HTTP Json
     * response to the client.
     *
     * @param  mixed  $data   The data
     * @param  int|null $status The HTTP status code.
     * @param  int    $options Json encoding options
     * @param  int    $depth Json encoding max depth
     * @return static
     * @phpstan-param positive-int $depth
     */
    public function withJson(mixed $data, ?int $status = null, int $options = 0, int $depth = 512): ResponseInterface
    {
        $json = (string) json_encode($data, $options, $depth);

        if (json_last_error() !== JSON_ERROR_NONE) {
            throw new RuntimeException(json_last_error_msg(), json_last_error());
        }

        $response = $this->getResponse()
            ->withHeader('Content-Type', 'application/json;charset=utf-8')
            ->withBody(new Stream($json));

        if ($status !== null) {
            $response = $response->withStatus($status);
        }

        $new = clone $this;
        $new->message = $response;

        return $new;
    }

    /**
     * Redirect.

View on GitHub (pinned to 6040efed04)

When it happens

Trigger: Thrown at system/src/Grav/Framework/Psr7/Response.php:63 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of getgrav/grav@6040efed04 (2026-08-17). Data as JSON: /api/errors/bab03d5906d22dcd. Report an issue: GitHub.