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A simple way to communicate a server via HTTP from PHP script. GET only.

色々なやり方の紹介をみたが、できるだけ簡単に書きたかったので自分も書いてみる。でも、GET だけ。

// $url : request URL
// $qs : an array contains QUERY STRING
function my_http_get($url) {
 $h=fopen($url,'r');
 $meta_data=stream_get_meta_data($h); // both PHP4, PHP5 OK
 $headers=$meta_data['wrapper_data'];
 $result['content']=stream_get_contents($h); // only PHP5, you need write the function for PHP4
 fclose($h)

 if (preg_match('/^HTTP\/([0-9]\.[0-9]) ([0-9]+)/',$headers[0],$matches)) {
  $result['response']=$matches[2];
 }

 return $result;
}

In addition to the above, the following would be useful to make QUERRY STRING from an array.

おまけ。QUERRY STRINGを配列から作る処理。

  if (is_array($qs)) {
    $qs_encoded='?';
    foreach($qs as $key=>$value) {
      if (substr($qs_encoded,-1)!='?') {
	$qs_encoded.='&';
      }
      $qs_encoded.=$key.'='.rawurlencode($value);
    }
  } else {
    $qs_encoded=$qs;
  }

  }