[Proposal]: Make sure examples work in playground

[domis86]

Describe the Proposal

Some examples result in error when opened in playground.

To reproduce:

Go to https://flow-php.com/data_frame/data_reading/json/ and click "play" button . You are redirected to https://flow-php.com/playground/data_frame/data_reading/json/ . Click "Run" button. Error appears in output:

2:35:21 PM[SUCCESS]
Uncaught throwable 'JsonMachine\Exception\SyntaxErrorException': Unexpected symbol '<!doctype' At position 0.
At phar:///workspace/tools/flow.phar/vendor/halaxa/json-machine/src/Parser.php:438

Consider adding some automatic check (simple crawler?) - which runs all examples in browser and asserts if there is no error in output etc.

API Adjustments

No response

Are you intending to also work on proposed change?

None

Are you interested in sponsoring this change?

None

Integration & Dependencies

No response

[norberttech]

hey! All examples are located here: https://github.com/flow-php/flow/tree/1.x/web/landing/content/examples

All needs to be done is to fix the code.

Consider adding some automatic check (simple crawler?) - which runs all examples in browser and asserts if there is no error in output etc.

Not worth it, that crawler would need to be able to fully run playground, iterate through all examples, know the expected result etc.
We used to had examples as raw php code, executed ach time on each PR but in long term it was too painful to properly maintain it.
I simply don't have time for that

[norberttech]

there are also some examples that are based on Curl or PDO that will never work since we can't emulate those services in WASM runtime, but I think those we might want to maybe disable the playground for them as they are pretty much useless