php - file get content with json not working -

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www.youtubeinmp3.com/fetch/?format=json&video=http://www.youtube.com/watch?v=i62zjga8jom

example output : 

{    "title":"happy forever alone day (forever alone song)",  "length":"125",  "link":"http:\/\/youtubeinmp3.com\/download\/get\ /?i=k1makl%2fylh6kutehqyqlg9xwtuuwo"  }

i want using php json file content not working.

  <?php     $json_url = "www.youtubeinmp3.com/fetch/?format=json&video=http://www.youtube.com/watch?v=i62zjga8jom"; $json = file_get_contents($json_url); $data = json_decode($json, true); echo "<pre>"; print_r($data); echo "</pre>";  ?>

but nothing working please me .. $json_url = "www.youtubeinmp3.com/fetch/?format=json&video=$videoid"; $videoid dyanamic value getting using post variable .

likie 

  <?php  $video=$_post['yturl'];    echo $video;?>

thanks.

using code output.

$curlsession = curl_init(); curl_setopt($curlsession, curlopt_url, 'www.youtubeinmp3.com/fetch/?format=json&video=http://www.youtube.com/watch?v=i62zjga8jom&chof=json'); curl_setopt($curlsession, curlopt_binarytransfer, true); curl_setopt($curlsession, curlopt_returntransfer, true);  $jsondata = json_decode(curl_exec($curlsession)); curl_close($curlsession); echo "<pre>"; print_r($jsondata); echo "</pre>";

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