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May 25, 2018 20:40
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RSS to JSON
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<?php | |
$url = isset($_GET['url']) ? $_GET['url'] : ''; | |
if (filter_var($url, FILTER_VALIDATE_URL) === false || strtolower(substr($url, 0, 4)) !== 'http') { | |
echo("URL inválida: $url"); | |
exit(); | |
} | |
$proxy = null; // "http://192.168.0.10:3128" | |
$ch = curl_init($url); | |
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); | |
curl_setopt($ch, CURLOPT_URL, $url); | |
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); | |
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); | |
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 2); | |
curl_setopt($ch, CURLOPT_TIMEOUT, 60); | |
curl_setopt($ch, CURLOPT_PROXY, $proxy); | |
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); | |
curl_setopt($ch, CURLOPT_HEADER, true); | |
$response = curl_exec($ch); | |
$header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE); | |
$headers = substr($response, 0, $header_size); | |
$body = substr($response, $header_size); | |
preg_match("/charset=([\w-]*)/", $headers, $output_array); | |
$chartset = isset($output_array[1]) ? $output_array[1] : 'UTF-8'; | |
if ($chartset !== 'UTF-8') { | |
$body = mb_convert_encoding($body, 'UTF-8', $chartset); | |
} | |
$body = preg_replace("/<\?xml.+\?>/", "", $body); | |
header('Content-Type: application/json'); | |
header("Access-Control-Allow-Origin: *"); | |
$feed = new DOMDocument(); | |
$feed->loadXML($body); | |
$channel = $feed->getElementsByTagName('channel')->item(0); | |
$title = $channel->getElementsByTagName('title')->item(0)->textContent; | |
$description = $channel->getElementsByTagName('description')->item(0)->textContent; | |
$link = $channel->getElementsByTagName('link')->item(0)->textContent; | |
$json = [ | |
'title' => trim($title), | |
'description' => trim($description), | |
'link' => trim($link), | |
'items' => [], | |
]; | |
$items = $feed->getElementsByTagName('channel')->item(0)->getElementsByTagName('item'); | |
foreach($items as $item) { | |
$title = $item->getElementsByTagName('title')->item(0)->textContent; | |
$description = $item->getElementsByTagName('description')->item(0)->nodeValue; | |
$json['items'][] = [ | |
'title' => trim($title), | |
'content' => trim($description), | |
]; | |
} | |
echo json_encode($json); |
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