phalcon/cphalcon · error · Phalcon\Messages\Exceptions\MessagesNotIterable

The messages must be iterable

Error message

The messages must be iterable

What it means

Error "The messages must be iterable" thrown in phalcon/cphalcon.

Source

Thrown at phalcon/Messages/Messages.zep:85

     * $messages->appendMessages($messagesArray);
     *```
     *
     * Accepts an array of MessageInterface objects or an Iterator yielding
     * them. The parameter stays untyped so that a non-iterable argument
     * reaches the guard below and raises MessagesNotIterable rather than a
     * TypeError.
     *
     * @param mixed $messages
     *
     * @return void
     * @throws MessagesNotIterable
     */
    public function appendMessages(var messages)
    {
        var currentMessages, finalMessages, message;

        if typeof messages !== "array" && !(typeof messages === "object" && messages instanceof Traversable) {
            throw new MessagesNotIterable();
        }

        let currentMessages = this->messages;

        if typeof messages == "array" {
            /**
             * An array of messages is simply merged into the current one
             */
            let finalMessages = array_merge(currentMessages, messages);

            let this->messages = finalMessages;
        } else {
            /**
             * A collection of messages is iterated and appended one-by-one to
             * the current list
             */
            messages->rewind();

View on GitHub (pinned to b7419de9cd)

When it happens

Trigger: Thrown at phalcon/Messages/Messages.zep:85 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of phalcon/cphalcon@b7419de9cd (2026-08-21). Data as JSON: /api/errors/fb6fed8819ee7b39. Report an issue: GitHub.