how to listen page by on？

[yangweijie]

when i simulate to login some website to get cookie, there comes alert dialog. how to write like js code below same with php？

page.on('dialog', async dialog => {
    console.log(dialog.message());
    await dialog.dismiss();
    // await browser.close();
});

[nesk]

See the documentation about evaluated functions.

[tfedor]

I checked the documentation but I think I still don't understand how this is supposed to work.

I understand that I have to use JsFunction, I think I know how to create one, but how do I get back the result in PHP?

$function = JsFunction::createWithAsync()
    ->parameters(["response"])
    ->body('return response.status();');

$page->on("response", $function);

how do I get the status in PHP? Is there an example I have missed? If it's not, can it be please created?

[nesk]

I should document this. You can listen for an event and react to it, however it’s currently impossible to transmit a value to PHP from a JS event.

[kids-return]

How to do this, whether to consider adding in the future

[kids-return]

I tried to do this, but something went wrong.

        $function = JsFunction::create(['request'], "
            fs = require('fs');
            fs.writeFileSync('request.txt', request.url());
        ");
        $page->on('requestfailed', $function);

PHP Fatal error: Uncaught Nesk\Rialto\Exceptions\Node\FatalException: require is not defined in /Users/lixiang/Documents/data/wwwroot/yii3/vendor/nesk/rialto/src/ProcessSupervisor.php:307

[kids-return]

    page.on('requestfailed', function (request) {
        fs = require('fs');
        fs.writeFileSync('request.txt', request.url());
    });

In nodejs, this works fine

[nesk]

This is because JS functions in PuPHPeteer are created with the Function constructor, your last example would look like this if written with PuPHPeteer:

page.on('requestfailed', new Function('request', `
    fs = require('fs');
    fs.writeFileSync('request.txt', request.url());
`));

This will fail because the body of the function doesn't have access to the module scope, but only to the global one.

I agree this is an issue and should be fixed, I've created an issue for this: rialto-php/rialto#19

[truong8487]

Please resolve this issue, Mr Nesk and All!The example above , i till dont understand.
Let show a example about page.on when use with puphpeteer.
Thank u so much!