Fetching Images URL from wikipedia

I’m using wikipedia api to scrape images from api its returning data in json form in which the image Url is like this “https://upload.wikimedia.org/wikipedia/en/f/f7/Canada%27s_Aviation_Hall_of_Fame_logo.jpg” the Url that is same for all images is “https://upload.wikimedia.org/wikipedia/en/” The Php code is as follows:

<form action="" method="get">
    <input type="text" name="search">
    
    <input type="submit" value="Search">
</form>

<?php
if(@$_GET['search']){
    $api_url="https://en.wikipedia.org/w/api.php?action=query&format=json&list=allimages&aifrom=".ucwords($_GET['search'])."&ailimit=500";
    $api_url=str_replace('', '%20', $api_url);
    $curl=curl_init();
    curl_setopt($curl, CURLOPT_URL, $api_url);
    curl_setopt($curl,CURLOPT_RETURNTRANSFER, true);
    $output=curl_exec($curl);
    curl_close($curl);
    preg_match_all('!//upload.wikimedia.org/wikipedia/en/!', $output, $data);
    echo '<pre>';
    foreach ($data[0] as $list) {
        echo "<img src='$list'/>";
        # code...
    }

    }



?>

How can I get the remaining part of the url correctly?

Answer

You need to decode it using json_decode and get the url image link

function get_wiki_image( $search, $limit) {

  $streamContext = array(
    "ssl" => array(
          "verify_peer" => false,
          "verify_peer_name" => false,
      ),
  );

  $url = 'https://en.wikipedia.org/w/';
  $url .= '/api.php?action=query&format=json&list=allimages&aifrom=' . $search . '&ailimit=' . $limit;

  $context = stream_context_create($streamContext);

  if(FALSE === ($content = @file_get_contents($url, false,$context)) ) {
    return false;
  } else {
    $data = json_decode($content,true);
    $ret = array();
    foreach($data['query']['allimages'] as $img) {
      $ret[] = $img['url'];
    }
    return $ret;
  }

}

$search = ucwords($_GET['search']);
$images = get_wiki_image($search,500);

foreach($images as $img) {
  echo "<img src='{$img}'>";
}