Help encoding a cURL argument (works fine from the command line, but not from a PHP script) -

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i working facebook api, , use following command via terminal post message users wall.

curl -f 'access_token=xxxxxxxxxx' \  -f 'message=hello world' \  -f 'to={["id":xxxxxxx]}' \  https://graph.facebook.com/me/feed

this works great. trying same via php code;

$fields = array(     'access_token' => $t,     'message' => $message,     'to' => '{["id":'.$id.']}' );  $ch = curl_init(); curl_setopt($ch, curlopt_url,  $url); curl_setopt($ch, curlopt_post, 1);           curl_setopt($ch, curlopt_postfields, $fields); curl_exec($ch); curl_close($ch);

this code successfuly posts message, own wall (i.e. ignoring 'to' parameter). i'm new curl, , i'm sure encoding wrong, or maybe missing curl flag, i've been through several tutorials on posting via curl, including few answers, , can't see i'm missing.

really appreciate help!

what print out?

if ( 'post' == $_server[ 'request_method' ]) {     echo 'posted: ';     print_r( $_post );     exit;    }   $t = '121'; $message = 'helo worlds'; $id = 1234;  $fields = array(     'access_token' => $t,     'message' => $message,     'to' => '{["id":'.$id.']}' );  $ch = curl_init(); curl_setopt($ch, curlopt_url,  'http://localhost:8888/testbed/' ); // script curl_setopt($ch, curlopt_post, 1);           curl_setopt($ch, curlopt_postfields, $fields); curl_setopt($ch, curlopt_returntransfer, true );  $out = curl_exec($ch); curl_close($ch);  echo 'received[ ' . $out . ' ]';

prints on local box:

received[ posted: array ( [access_token] => 121 [message] => helo worlds [to] => {[\"id\":1234]} ) ]

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