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<?php |
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namespace Tzsk\ScrapePod\Vendors; |
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use Tzsk\ScrapePod\Contracts\VendorInterface; |
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class Itunes extends AbstractVendor implements VendorInterface |
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{ |
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/** |
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* @var string |
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*/ |
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const SEARCH_URL = "https://itunes.apple.com/search"; |
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/** |
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* @var string |
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*/ |
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const LOOKUP_URL = "https://itunes.apple.com/lookup"; |
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/** |
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* @var string |
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*/ |
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const ENTITY = "podcast"; |
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/** |
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* @var string |
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*/ |
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const MEDIA = "podcast"; |
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/** |
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* @var int |
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*/ |
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private $limit = 15; |
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/** |
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* @var string |
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*/ |
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private $defaultQuery = null; |
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/** |
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* Itunes constructor. |
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*/ |
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public function __construct() |
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{ |
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$this->setDefaultQuery(); |
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} |
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/** |
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* @return int |
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*/ |
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public function getLimit() |
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{ |
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return $this->limit; |
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} |
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/** |
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* @param int $limit |
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*/ |
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public function setLimit($limit) |
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{ |
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$this->limit = (int) $limit; |
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} |
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/** |
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* @return void |
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*/ |
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public function setDefaultQuery() |
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{ |
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$this->defaultQuery = http_build_query([ |
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'limit' => $this->limit, |
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'entity' => self::ENTITY, |
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'media' => self::MEDIA |
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]); |
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} |
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/** |
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* @param string $value |
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* @return string |
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*/ |
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public function generateUrl($value) |
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{ |
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$value = is_string($value) ? urlencode($value) : $value; |
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$url = is_int($value) ? self::LOOKUP_URL . "?id={$value}" : self::SEARCH_URL . "?term={$value}"; |
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return $url . '&' . $this->defaultQuery; |
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} |
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/** |
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* @param array $response |
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* @return array |
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*/ |
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public function build(array $response) |
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{ |
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$response = json_decode($response['search']); |
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$output['result_count'] = $response->resultCount; |
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foreach($response->results as $value) { |
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$output['results'][] = [ |
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'itunes_id' => $value->collectionId, |
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'author' => $value->artistName, |
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'title' => $value->collectionName, |
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'episodes' => $value->trackCount, |
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'image' => $value->artworkUrl100, |
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'rss' => $value->feedUrl, |
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'itunes' => $value->collectionViewUrl, |
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'genre' => $value->primaryGenreName, |
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]; |
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} |
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return $output; |
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} |
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} |
tzsk /
scrape-pod
Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArrayis initialized the first time when the foreach loop is entered. You can also see that the value of thebarkey is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.