PHP - Insert a variable into an array -

say have array

$args = array('responsetype' => 'xml',     'servername' => 'vl18278.dinaserver.com',     'command' => 'vps_getusedspace', ) ; 

this array composes url send through curl. need replace vl18278.dinaserver.com variable $vps, when replace it, url show %5b0%5d before = sign of attribute servername:

responsetype=xml&servername%5b0%5d=vl18278.dinaserver.com&command=vps_getusedspace 

if dont replace vl18278.dinaserver.com, url correct.

what wrong code? why %5b0%5d getting url? :( in advance.

complete code:

<?php   $listavps = simplexml_load_file('servers.xml');   foreach ($listavps->servers->server $vps) {  $urlapi = 'url.php'; $username = 'user'; $password = 'pass'; $args = array('responsetype' => 'xml',     'servername' => 'vl18278.dinaserver.com',     'command' => 'vps_getusedspace', ) ; $args = ( is_array ( $args ) ? http_build_query ( $args, '', '&' ) : $args ); $headers = array();  $handle = curl_init($urlapi); if( $handle === false ) // error starting curl {     $error = '0 - couldn\'t start curl'; } else {      curl_setopt ( $handle, curlopt_followlocation, true );     curl_setopt ( $handle, curlopt_returntransfer, true );     curl_setopt ( $handle, curlopt_url, $urlapi );      curl_setopt( $handle, curlopt_userpwd, $username.':'.$password );     curl_setopt( $handle, curlopt_httpauth, curlauth_basic );      curl_setopt( $handle, curlopt_timeout, 60 );     curl_setopt( $handle, curlopt_connecttimeout, 4); // set higher if "28 - ssl connection timeout" error      curl_setopt ( $handle, curlopt_header, true );     curl_setopt ( $handle, curlopt_httpheader, $headers );      $curlversion = curl_version();     curl_setopt ( $handle, curlopt_useragent, 'php '.phpversion().' + curl '.$curlversion['version'] );     curl_setopt ( $handle, curlopt_referer, null );      curl_setopt ( $handle, curlopt_ssl_verifypeer, false ); // set false if "60 - ssl certificate problem" error      curl_setopt ( $handle, curlopt_postfields, $args );     curl_setopt ( $handle, curlopt_post, true );      $response = curl_exec ( $handle );     echo $args;     if ($response)     {         $response = substr( $response,  strpos( $response, "\r\n\r\n" ) + 4 ); // remove http headers         // parse response           $responsesimplexml = simplexml_load_string($response);         if( $responsesimplexml === false )         {             // invalid xml response         }         else         {             // parse response             $errorcode = $responsesimplexml->response->responsecode ;             echo $errorcode;             if( $errorcode == 1000 ) // success             {                 $usado = $responsesimplexml->response->data->total_space;                 $capacidad = $responsesimplexml->response->data->space_limit;                 echo 'usado: '.$usado.'</br>total: '.$capacidad.'.';             }             else // normal errors             {                 $errors = $responsesimplexml->response->errors;                 foreach( $errors->error $error )                 {                     // process error                 }             }         }       }     else // http response code != 200     {         $error = curl_errno ( $handle ) . ' - ' . curl_error ( $handle );     }      curl_close($handle); }   }   ?> 

your variable $server must array, because, once decoded, %5b0%5d [0].

my guess use $server[0] instead of $server wherever replace value. without replacement code, hard determine.