Question

任何人都可以告诉我如何为以下代码定义索引：

<?php

///////////////////////////////////////////////////////////////////////////////
// GENERAL SETTINGS
///////////////////////////////////////////////////////////////////////////////
$folder_sort_order = "asc"; //asc or desc
$image_sort_order = "asc"; //asc or desc
$mainfolder = "autogallery"; //only change this if you rename the folder

# path to the script, shouldnt need to change it unless you change the path
# for example $path_to_script = "/path/to/my/script/autogallery/" . $mainfolder; 
$path_to_script = "/autogallery/" . $mainfolder; 

///////////////////////////////////////////////////////////////////////////////
// CODE STARTS HERE, YOU SHOULD NOT HAVE TO EDIT BELOW THIS LINE
///////////////////////////////////////////////////////////////////////////////
$basepath = $_SERVER["DOCUMENT_ROOT"] . $path_to_script;
$gallerypath = $basepath . "/galleries/";
$galleryid = $_REQUEST['directory']; //get gallery id from ajax request

//instantiate the autoGallery class
require 'autoGallery.php'; 
$autogallery = new autoGallery();

//if ajax is disabled, degrade
if(empty($galleryid)) {
    $galleryid = $_GET['gid'];
}

//get all photos from selected gallery or from latest gallery
if(isset($galleryid)){
    $galleryname = $autogallery->getGalleryNameByID($gallerypath, $galleryid);
} else {
    $galleryname = $autogallery->latestGallery($gallerypath, $folder_sort_order);
}

$imagepath = $gallerypath . $galleryname . "/";
$imagefiles = $autogallery->getPhotos($imagepath, $image_sort_order);

//remove id from gallery name for viewing purposes
$galleryname = substr($galleryname, 4);

//get gallery list to build nav
$gallerylist = $autogallery->getGalleries($gallerypath, $folder_sort_order);

//remove base path from image path
$imagepath = str_replace($basepath . "/", "", $imagepath);

//path for ajax request
$datapath = str_replace($basepath . "/", "", $path_to_script);

我不断收到以下错误消息：注意：未定义的索引：C中的目录：第19行的wampwwwautogalleryautogallerysettings.php注意：未定义的索引：C中的gid：第27行的wampwwwautogalleryautogallerysettings.php第19行的代码是：

$galleryid = $_REQUEST['directory']; //get gallery id from ajax request

第27行的代码是：

$galleryid = $_GET['gid'];

第26-28行的完整代码：

if(empty($galleryid)) {
    $galleryid = $_GET['gid'];
}

Answer 1

在使用

之前检查变量是否存在

isset()

功能

if(empty($galleryid)) {

  if (isset($_GET['gid'])) {
     $galleryid = $_GET['gid'];
  }

}

$_GET['gid']和$_REQUEST['directory']都没有设置

如何在galleryfile上定义索引

1 个答案: