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我正在使用 php 和 mysql 建立一个网站。我有一个仅供管理员使用的登录名，仅此而已。管理员可以创建图像相册并将图像上传到其中。其他每个用户都不需要登录该网站。我的问题是我无法在未登录网站的情况下向用户显示图像。管理员登录网站后可以看到图像。有什么想法我做错了什么吗？任何解决方案可以接受。。

这是包含上述内容的代码：

相册.php

<?php
if (!logged_in()){
?>
        <ul>
          <li class="first"><a href="indexAdmin.html"><span class="style2">   <b>Α</b>ΡΧΙΚΗ</span></a></li>
          <li class="first"><a href="#"><span class="style2"><b>Μ</b>ΟΥΣΕΙΟ</span></a>
          <ul>
            <li class="second"><a href="istoriki_anadromi.html"><span>Ιστορική Αναδρομή</span></a></li>
            <li class="second"><a href="oikonomiki_zwi.html"><span>Οικονομική Ζωή</span></a></li>
            <li class="second"><a href="nautilia.html"><span>Ναυτιλία</span></a></li>
            <li class="second"><a href="ixoi.html"><span>Ήχοι της Πόλης</span></a></li>
            <li class="second"><a href="proswpikotites.html"><span>Προσωπικότητες</span></a></li>
            <li class="second"><a href="thesmoi.html"><span>Θεσμοί της Πόλης</span></a></li>
          </ul></li>

          <li class="first"><a href="#"><span class="style2"><b>Κ</b>ΕΝΤΡΟ <b>Ε</b>ΡΕΥΝΩΝ</span></a>
          <ul>
            <li class="second"><a href="progr.html"><span>Εκπαιδευτικά Προγράμματα</span></a></li>
            <li class="second"><a href="simposia.html"><span>Επιστημονικά Συμπόσια</span></a></li>
            <li class="second"><a href="imerides.html"><span>Ημερίδες</span></a></li>
            <li class="second"><a href="dialexeis.html"><span>Διαλέξεις</span></a></li>
          </ul></li>

          <li class="first"><a href="#"><span class="style2"><b>Ι</b>ΣΤΟΡΙΚΟ <b>Α</b>ΡΧΕΙΟ</span></a>
          <ul>
            <li class="second"><a href="arxeio_dimou.html"><span>Αρχείο Δήμου</span></a></li>
            <li class="second"><a href="idiwtika_arxeia.html"><span>Ιδιωτκά Αρχεία</span></a></li>
            <li class="second"><a href="albums.php"><span>Φωτογραφίες</span></a></li>
            <li class="second"><a href="video.html"><span>Βίντεο</span></a></li>
          </ul></li>

          <li class="first"><a href="contact.html"><span class="style2"><b>Ε</b>ΠΙΚΟΙΝΩΝΙΑ</span></a></li>
    </ul>
    <?php
}else{ ?>
<ul>
          <li class="first"><a href="indexAdmin.html"><span class="style2"><b>Α</b>ΡΧΙΚΗ</span></a></li>
          <li class="first"><a href="#"><span class="style2"><b>Μ</b>ΟΥΣΕΙΟ</span></a>
          <ul>
            <li class="second"><a href="istoriki_anadromi.html"><span>Ιστορική Αναδρομή</span></a></li>
            <li class="second"><a href="oikonomiki_zwi.html"><span>Οικονομική Ζωή</span></a></li>
            <li class="second"><a href="nautilia.html"><span>Ναυτιλία</span></a></li>
            <li class="second"><a href="ixoi.html"><span>Ήχοι της Πόλης</span></a></li>
            <li class="second"><a href="proswpikotites.html"><span>Προσωπικότητες</span></a></li>
            <li class="second"><a href="thesmoi.html"><span>Θεσμοί της Πόλης</span></a></li>
          </ul></li>

          <li class="first"><a href="#"><span class="style2"><b>Κ</b>ΕΝΤΡΟ <b>Ε</b>ΡΕΥΝΩΝ</span></a>
          <ul>
            <li class="second"><a href="progr.html"><span>Εκπαιδευτικά Προγράμματα</span></a></li>
            <li class="second"><a href="simposia.html"><span>Επιστημονικά Συμπόσια</span></a></li>
            <li class="second"><a href="imerides.html"><span>Ημερίδες</span></a></li>
            <li class="second"><a href="dialexeis.html"><span>Διαλέξεις</span></a></li>
          </ul></li>

          <li class="first"><a href="#"><span class="style2"><b>Ι</b>ΣΤΟΡΙΚΟ <b>Α</b>ΡΧΕΙΟ</span></a>
          <ul>
            <li class="second"><a href="arxeio_dimou.html"><span>Αρχείο Δήμου</span></a></li>
            <li class="second"><a href="idiwtika_arxeia.html"><span>Ιδιωτκά Αρχεία</span></a></li>
            <li class="second"><a href="albumsAdmin.php"><span>Φωτογραφίες</span></a></li>
            <li class="second"><a href="video.html"><span>Βίντεο</span></a></li>
          </ul></li>

          <li class="first"><a href="contact.html"><span class="style2"><b>Ε</b>ΠΙΚΟΙΝΩΝΙΑ</span></a></li>
    </ul>
    <?php }?>
  </div>
</div>
<div class="content3">
<div class="content_resize3">
  <div class="mainbar3">
    <div class="article3">
          <h2><span>Συλλογές Φωτογραφιών</span></h2>
      <div class="clr"></div>
    <table border="0" cellspacing="0" cellpadding="2" width="610">
    <tr>
     <td>
     <br />


<?php

$albums1 = get_albumsAll();


if (empty($albums1)){
echo '<p>There are no albums</p>';
}else{
foreach ($albums1 as $album) {
                echo '<table style="display:inline-table;"><tr><td><p class="links"><a href="view_album1.php', $album, '" height="100" width="100">', $album['name'], '</a> (', $album['count'], ' images)<br />
                ', $album['description'], '...<br /></p> </td></tr></table>';
            }
        }
?>

view_album.php

<?php
include 'init.php';
if (!logged_in()) {
header('Location: albums.php');
exit();
}

if (!isset($_GET['album_id']) || empty($_GET['album_id']) ||   album_check($_GET['album_id']) == false) {
header('Location: albumsAdminAll.php');
exit();
}

$album_id = $_GET['album_id'];
$album_data = album_data($album_id, 'name', 'description');
?>
<div class="content3">
<div class="content_resize">
  <div class="mainbar3">
    <div class="article3">
      <?php echo '<h2>','<span>', $album_data['name'], '</span>', '</h2>', '<p id="description">', $album_data['description'], '</p>'; ?>
      <div class="clr"></div>
      <div class="post_content3">
        <p>

<?php
$album_id = $_GET['album_id'];
$images = get_images($album_id);

if (empty($images)) {
echo 'There are no images in this album<br /><br /><br />
        <p class="links"><a href="upload_image.php">Eισαγωγή Φωτογραφιών</a></p>';
} else {
foreach ($images as $image) {
    echo '<table style="display:inline-table;"><tr><td><a href="uploads/',   $image['album'], '/', $image['id'], '.', $image['ext'], '" height="100" width="100"><img src="uploads/thumbs/', $image['album'], '/', $image['id'], '.', $image['ext'], '" id="img" title="Uploaded ', date('D M Y / h:i ', $image['timestamp']), '" /></a> 
    <a href="delete_image.php?image_id=', $image['id'], '">[x]</a></td></tr></table>';

}echo '<br/><br/><p class="links"><a href="upload_image.php"><p class="links">Eισαγωγή Φωτογραφιών</p></a>
    <p class="links"><a href="albumsAdminAll.php">Back to Albums</a>  </p><br/>';
}

?>

初始化文件

<?php
ob_start();
session_start();

mysql_connect('localhost','root','');
mysql_query("SET CHARACTER SET utf8");
mysql_select_db('museum');

include 'func/user.func.php';
include 'func/album.func.php';
include 'func/image.func.php';
include 'func/thumb.func.php';

 ?>

相册.func.php

     <?php
function album_data($album_id) {
$album_id = (int)$album_id;
$args = func_get_args();
unset($args[0]);
$fields = '`'.implode('`, `', $args).'`';

$query = mysql_query("SELECT $fields FROM `albums` WHERE `album_id`=$album_id AND `user_id`=".$_SESSION['user_id']) or die(mysql_error());
$query_result = mysql_fetch_assoc($query);
foreach ($args as $field) {
    $args[$field] = $query_result[$field];

}    
return $args;
}

function album_check($album_id) {
$album_id = (int)$album_id;
$query = mysql_query("SELECT COUNT(`album_id`) FROM `albums` WHERE `album_id`=$album_id AND `user_id`=".$_SESSION['user_id']);
return (mysql_result($query, 0) == 1) ? true : false;
}

function get_albums() {
$albums = array();

$albums_query = mysql_query("
SELECT `albums`.`album_id`, `albums`.`timestamp`, `albums`.`name`, LEFT(`albums`.`description`, 50) as `description`,
COUNT(`images`.`image_id`) as `image_count`
FROM `albums`
LEFT JOIN `images`
ON `albums`.`album_id` = `images`.`album_id`
WHERE `albums`.`user_id` = ".$_SESSION['user_id']."
GROUP BY `albums`.`album_id`
") or die(mysql_error());


if(mysql_num_rows($albums_query)>0){ 
//this statement checks whether the query return more than 0 rows, if yes then it will proceeds.
// you can even check if(mysql_numrows($albums_query)==1) if it should return only one row
    while ($albums_row = mysql_fetch_assoc($albums_query)) {
        $albums[] = array(
        'id' => $albums_row['album_id'],
        'timestamp' => $albums_row['timestamp'],
        'name' => $albums_row['name'],
        'description' => $albums_row['description'],
        'count' => $albums_row['image_count']
        );
    }return $albums;
}else{     
}
}

function get_albumsAll() {
$albums2 = array();

$albums_query2= mysql_query ("
SELECT `albums`.`album_id`, `albums`.`timestamp`, `albums`.`name`, LEFT(`albums`.`description`, 50) as `description`, COUNT(`images`.`image_id`) as `image_count`
FROM `albums`
LEFT JOIN `images`
ON `albums`.`album_id` = `images`.`album_id`
GROUP BY `albums`.`album_id`
") or die(mysql_error());

if(mysql_num_rows($albums_query2)>0){ 

while ($albums_row2 = mysql_fetch_assoc($albums_query2)){
    $albums2[] = array(
        'id' => $albums_row2['album_id'],
        'timestamp' => $albums_row2['timestamp'],
        'name' => $albums_row2['name'],
        'description' => $albums_row2['description'],
        'count' => $albums_row2['image_count']
        );
}
return $albums2;
}
}

function create_album($album_name, $album_description) {
$album_name = mysql_real_escape_string(htmlentities($album_name)); 
$album_description = mysql_real_escape_string(htmlentities($album_description)); 

mysql_query("INSERT INTO `albums` VALUES ('', '".$_SESSION['user_id']."', UNIX_TIMESTAMP(), '$album_name', '$album_description')");
mkdir('uploads/'.mysql_insert_id(), 0744);
mkdir('uploads/thumbs/'.mysql_insert_id(), 0744);
}


function edit_album($album_id, $album_name, $album_description) {
$album_id = (int)$album_id;
$album_name = mysql_real_escape_string($album_name);
$album_description = mysql_real_escape_string($album_description);
mysql_query("UPDATE `albums` SET `name` = '$album_name', `description` = '$album_description' WHERE `album_id` =    '$album_id' AND `user_id` = ".$_SESSION['user_id']);
}

function delete_album($album_id) {
$album_id = (int)$album_id;

// To do: use a method to delete all files from folder and thubs folder, then the directory

mysql_query("DELETE FROM `albums` WHERE `album_id`=$album_id AND `user_id`=".$_SESSION['user_id']);
mysql_query("DELETE FROM `images` WHERE `album_id`=$album_id AND `user_id`=".$_SESSION['user_id']);
}
?>

相册AdminAll.php

    <?php
include 'init.php';
?>

<div class="content3">
<div class="content_resize">
  <div class="mainbar3">
    <div class="article3">
      <h2><span>Άλμπουμ</span></h2>
      <div class="clr"></div>
      <div class="post_content3">
        <p>

<?php
if(!logged_in()){
header('Location: albums.php');
exit();
}else{
$albums = get_albums();


if (empty($albums)){
    echo '<p>There are no albums</p>';

}else{
    foreach ($albums as $album){
                echo '<table style="display:inline-table;"><tr><td><p class="links"><a href="view_album.php?album_id=', $album['id'], '" height="100" width="100">', $album['name'], '</a> (', $album['count'], ' images)<br />
                ', $album['description'], '...<br />
                <div class="links2"><p class="links"><a href="edit_album.php?album_id=', $album['id'], '">Επεξεργασία</a> / <a href="delete_album.php?album_id=', $album['id'], '">Διαγραφή</a></div></div>
                </p></td></tr></table>';
        }echo '<br/><br/><br/><p class="links"><a href="upload_image.php">Eισαγωγή Φωτογραφιών</p></a>';
    }echo '<p class="links"><a href="albumsAdmin.php">Back to Menu</p></a>';
}
?>

谢谢

4

1 回答 1

0

为什么只有管理员登录时才显示图像？您是否在用户未登录时强制用户进入登录页面？如果是这种情况，那么您应该只在他们尝试访问他们能够上传/编辑图像的页面时强制/重定向他们。如果您还没有，您应该创建仅向用户显示图像的页面，并且不考虑用户是否登录我们的 not。

于 2012-06-24T13:01:33.450 回答