<?php  function getImageInfo($img) //$img为图像文件绝对路径  {      $img_info = getimagesize($img);      switch ($img_info[2]) {          case 1:              $imgtype = "GIF";              break;          case 2:              $imgtype = "JPG";              break;          case 3:              $imgtype = "PNG";              break;      }      $img_type = $imgtype . "图像";      $img_size = ceil(filesize($img) / 1000) . "k"; //获取文件大小             $new_img_info = array(          "width" => $img_info[0],          "height" => $img_info[1],          "type" => $img_type,          "size" => $img_size      );      print " width";      print $img_info[0];      print " height";      print $img_info[1];      print " format";      print $img_type;      print " size";      print $img_size;      print $new_img_info;  }     $img = "/www/htdocs/images/jf.gif";  getImageInfo($img);  ?>