What methods are available for selecting elements in the DOM with Symfony Panther?

Symfony Panther is a browser testing and web scraping library for PHP that leverages the WebDriver protocol. It provides a convenient API for navigating through and interacting with web pages, including selecting elements in the Document Object Model (DOM). To select elements in the DOM with Symfony Panther, you can use several methods that are similar to jQuery-style selectors.

Here are some of the methods provided by Symfony Panther for selecting elements:

1. find() and findAll()

The find() method selects the first element that matches the CSS selector, while findAll() returns all matching elements.

$client = \Symfony\Component\Panther\PantherTestCase::createPantherClient();
$crawler = $client->request('GET', 'https://example.com');

// Find the first element with the class 'some-class'
$element = $crawler->find('.some-class');

// Find all elements with the tag 'div'
$elements = $crawler->findAll('div');

2. findElement() and findElements()

These methods are directly from WebDriver and allow you to select elements using WebDriver's By class for selecting elements.

use Facebook\WebDriver\WebDriverBy;

$client = \Symfony\Component\Panther\PantherTestCase::createPantherClient();
$client->request('GET', 'https://example.com');

// Find the first element with the ID 'some-id'
$element = $client->findElement(WebDriverBy::id('some-id'));

// Find all elements with the name attribute 'some-name'
$elements = $client->findElements(WebDriverBy::name('some-name'));

3. filter() and filterXPath()

The filter() method uses CSS selectors, while filterXPath() uses XPath expressions to select elements.

$client = \Symfony\Component\Panther\PantherTestCase::createPantherClient();
$crawler = $client->request('GET', 'https://example.com');

// Filter by CSS selector
$elementsByCss = $crawler->filter('.some-class');

// Filter by XPath
$elementsByXPath = $crawler->filterXPath('//div[@class="some-class"]');

4. Selectors using jQuery-like methods

Symfony Panther provides methods that resemble jQuery's API, such as click(), text(), attribute(), and form().

$client = \Symfony\Component\Panther\PantherTestCase::createPantherClient();
$crawler = $client->request('GET', 'https://example.com');

// Click on a link with the text 'Click Me'
$link = $crawler->selectLink('Click Me')->link();
$client->click($link);

// Get the text of an element
$text = $crawler->filter('.some-class')->text();

// Get the value of an attribute
$href = $crawler->filter('a.some-link')->attribute('href');

// Submit a form
$form = $crawler->selectButton('Submit')->form();
$client->submit($form);

5. selectButton(), selectLink()

These methods are used to select buttons and links on the page, respectively.

$client = \Symfony\Component\Panther\PantherTestCase::createPantherClient();
$crawler = $client->request('GET', 'https://example.com');

// Select a button by its text or name
$button = $crawler->selectButton('Button Text');

// Select a link by its text
$link = $crawler->selectLink('Link Text');

These methods help you interact with the DOM elements on a page using Symfony Panther. Remember that when working with these methods, you will be dealing with Crawler instances, which provide an interface to filter and traverse the DOM efficiently.