# PuPHPeteer
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A [Puppeteer](https://github.com/GoogleChrome/puppeteer/) bridge for PHP, supporting the entire API. Based on [Rialto](https://github.com/nesk/rialto/), a package to manage Node resources from PHP.
Here are some examples [borrowed from Puppeteer's documentation](https://github.com/GoogleChrome/puppeteer/blob/master/README.md#usage) and adapted to PHP's syntax:
**Example** - navigating to https://example.com and saving a screenshot as *example.png*:
```php
use Nesk\Puphpeteer\Puppeteer;
$puppeteer = new Puppeteer;
$browser = $puppeteer->launch();
$page = $browser->newPage();
$page->goto('https://example.com');
$page->screenshot(['path' => 'example.png']);
$browser->close();
```
**Example** - evaluate a script in the context of the page:
```php
use Nesk\Puphpeteer\Puppeteer;
use Nesk\Rialto\Data\JsFunction;
$puppeteer = new Puppeteer;
$browser = $puppeteer->launch();
$page = $browser->newPage();
$page->goto('https://example.com');
// Get the "viewport" of the page, as reported by the page.
$dimensions = $page->evaluate(JsFunction::createWithBody("
return {
width: document.documentElement.clientWidth,
height: document.documentElement.clientHeight,
deviceScaleFactor: window.devicePixelRatio
};
"));
printf('Dimensions: %s', print_r($dimensions, true));
$browser->close();
```
## Requirements and installation
This package requires PHP >= 7.1 and Node >= 8.
Install it with these two command lines:
```shell
composer require nesk/puphpeteer
npm install @nesk/puphpeteer
```
## Notable differences between PuPHPeteer and Puppeteer
### Puppeteer's class must be instanciated
Instead of requiring Puppeteer:
```js
const puppeteer = require('puppeteer');
```
You have to instanciate the `Puppeteer` class:
```php
$puppeteer = new Puppeteer;
```
This will create a new Node process controlled by PHP.
You can also pass some options to the constructor, see [Rialto's documentation](https://github.com/nesk/rialto/blob/master/docs/api.md#options). PuPHPeteer also extends these options:
```php
[
// Logs the output of Browser's console methods (console.log, console.debug, etc...) to the PHP logger
'log_browser_console' => false,
]
```
⏱ Want to use some timeouts higher than 30 seconds in Puppeteer's API?
If you use some timeouts higher than 30 seconds, you will have to set a higher value for the `read_timeout` option (default: `35`):
```php
$puppeteer = new Puppeteer([
'read_timeout' => 65, // In seconds
]);
$puppeteer->launch()->newPage()->goto($url, [
'timeout' => 60000, // In milliseconds
]);
```
### No need to use the `await` keyword
With PuPHPeteer, every method call or property getting/setting is synchronous.
### Some methods have been aliased
The following methods have been aliased because PHP doesn't support the `$` character in method names:
- `$` => `querySelector`
- `$$` => `querySelectorAll`
- `$x` => `querySelectorXPath`
- `$eval` => `querySelectorEval`
- `$$eval` => `querySelectorAllEval`
Use these aliases just like you would have used the original methods:
```php
$divs = $page->querySelectorAll('div');
```
### Evaluated functions must be created with `JsFunction`
Functions evaluated in the context of the page must be written [with the `JsFunction` class](https://github.com/nesk/rialto/blob/master/docs/api.md#javascript-functions), the body of these functions must be written in JavaScript instead of PHP.
```php
use Nesk\Rialto\Data\JsFunction;
$pageFunction = JsFunction::createWithParameters(['element'])
->body("return element.textContent");
```
### Exceptions must be catched with `->tryCatch`
If an error occurs in Node, a `Node\FatalException` will be thrown and the process closed, you will have to create a new instance of `Puppeteer`.
To avoid that, you can ask Node to catch these errors by prepending your instruction with `->tryCatch`:
```php
use Nesk\Rialto\Exceptions\Node;
try {
$page->tryCatch->goto('invalid_url');
} catch (Node\Exception $exception) {
// Handle the exception...
}
```
Instead, a `Node\Exception` will be thrown, the Node process will stay alive and usable.
## License
The MIT License (MIT). Please see [License File](LICENSE) for more information.
## Logo attribution
PuPHPeteer's logo is composed of:
- [Puppet](https://thenounproject.com/search/?q=puppet&i=52120) by Luis Prado from [the Noun Project](http://thenounproject.com/).
- [Elephant](https://thenounproject.com/search/?q=elephant&i=954119) by Lluisa Iborra from [the Noun Project](http://thenounproject.com/).
Thanks to [Laravel News](https://laravel-news.com/) for picking the icons and colors of the logo.
## Support me
PuPHPeteer is a project requiring a lot of work (especially with [Rialto](https://github.com/nesk/rialto)). While I'm happy to work on it on my free time, I also enjoy to drink a couple of beers sometimes with my friends. If you want to support development, buy me a beer at [BeerPay](https://beerpay.io/nesk/puphpeteer). 🙏
[![Beerpay](https://beerpay.io/nesk/puphpeteer/badge.svg)](https://beerpay.io/nesk/puphpeteer)