curl php empty blank space -


this question exact duplicate of:

when type url browser, returns detailed output. however, when try curl request, request returns single empty blank space. why happening?

url https://api.500px.com/v1/users?oauth_token=aihbz6zwedu3vxnqdy2tqwtbwv86wtouxumhpapk&oauth_verifier=yhko0kaghfw0dfhparxu&consumer_key=0ovwthqr5j1zyx1cpaa8y0y1aofjbbdtpx85fj42

my code is:

<!doctype html>   <?php    function fetchdata($url) {              $ch = curl_init();                curl_setopt($ch, curlopt_header, 1);    curl_setopt($ch, curlopt_verbose, 1);    curl_setopt($ch, curlopt_returntransfer, 1);    curl_setopt($ch, curlopt_ssl_verifypeer, 0);    curl_setopt($ch, curlopt_ssl_verifyhost, 0);    curl_setopt($ch, curlopt_failonerror, 0);    curl_setopt($ch, curlopt_url, $url);    $returned = curl_exec($ch);    echo 'errors: ' . curl_errno($ch) . ' ' . curl_error($ch) . '<br><br>';    curl_close ($ch);    echo $returned;              return $returned;     }   );         // pulls , parses data.      $returned = fetchdata("https://api.500px.com/v1/users?oauth_token=xelrwq6cqitg8siy9kfbpwkj5scdlp33nrva5tzu&oauth_verifier=hbndynqm8bsyuizya4kz&consumer_key=0ovwthqr5j1zyx1cpaa8y0y1aofjbbdtpx85fj42");     var_dump($returned); if(curl_exec($ch) === false) {     echo 'curl error: ' . curl_error($ch); } 

please use curlopt_header check response headers errors.


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