rss-bridge/formats/JsonFormat.php

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<?php
/**
* Json
* Builds a JSON string from $this->items and return it to browser.
*/
class JsonFormat extends FormatAbstract {
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public function stringify(){
$items = $this->getItems();
return json_encode($items, JSON_PRETTY_PRINT);
}
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public function display(){
$this
->setContentType('application/json')
->callContentType();
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return parent::display();
}
}