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    /*
     * ÉÏ´«Í¼Æ¬Àa
     * @parameter; Óû§ID
     * @date£º2015-10-08
     * @author£ºcy
     * */
    function UpImg($subdir){
    // ÉeÖôae´¢Â*¾¶
    if(!empty($subdir)){
     $dirnow=getcwd();
     $folder =$dirnow."/www.php100.com/".$subdir;// folder where to save images
     if( !is_dir($folder) ) mkdir($folder);
    // ͼƬÃuÃu
     $datenow=date('Ymd');
     $timenow=time();
     $image = $datenow.$timenow.'.jpg';
    // ͼƬÊÇ*ñÒÑ´aeÔÚ
     $check = $folder . '/' . $image;
     if (file_exists($check)) {
     unlink($check);
     } else {
     $png = file_get_contents ( 'php://input' ) ? file_get_contents ( 'php://input' ) : gzuncompress ( $GLOBALS ['HTTP_RAW_POST_DATA'] );//µÃµ½post¹ýÀ´µÄ¶þ½øÖÆԭʼÊý¾Ý
     if(!empty($png)){
     $file = @fopen($folder."/".$image, "w");
       fwrite($file,$png);//дÈe hzhuti.com
     fclose($file);//¹Ø±Õ
     // orignal image location
      $write_image = $folder . '/' . $image;
     }else{
     $msg = "ûÓÐÊý¾ÝÁ÷";
     }
     if(getimageInfo($write_image)){
      $msg = "ÉÏ´«³É¹¦";
     }else{$msg = "ͼƬ¸ñʽ²»ÕýÈ*";}
     }
    }else{
     $msg = "²ÎÊý´iÎo";
    }
     return $msg;
     }
    /*
     * ¼i²aͼƬÊÇ*ñºÏ*¨
     * @parameter; ÎļþÃu
     * @date£º2011-8-15
     * @author£ºcy
     * */
     function getimageInfo($imageName = '') {
      $imageInfo = getimagesize ( $imageName );
      if ($imageInfo !== false) {
       $imageType = strtolower ( substr ( image_type_to_extension ( $imageInfo [2] ), 1 ) );
    //   $imageSize = filesize ( $imageInfo );
       return $info = array ('width' => $imageInfo [0], 'height' => $imageInfo [1], 'type' => $imageType, 'mine' => $imageInfo ['mine'] );
      } else {
       //²»ÊÇ php100.com ºÏ*¨µÄͼƬ
       return false;
      } 
     }

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