传递变量值的PHP

Question

有2页，一个是主要的，而另一个包括以它

的主网页

<?php 
$var_value = 7; 
$_SESSION['varname'] = $var_value; 
include 'upload_image.php'; 
?> 

和包含页面

<?php 
include 'init.php'; 

if (!logged_in()) { 
header('Location: index.php'); 
exit(); 
} 

include 'template/header.php'; 
?> 

<h3>Upload image</h3> 

<?php 

if (isset($_FILES['image'], $_POST['image_n'], $_POST['image_description'])) { 
$image_name = $_FILES['image']['name']; 
$bytes = $_FILES['image']['size']; 
$image_temp = $_FILES['image']['tmp_name']; 
$image_n = $_POST['image_n']; 
$image_description = $_POST['image_description']; 

$allowed_ext = array('jpg', 'jpeg', 'png', 'gif', 'rar', 'pdf'); 
//$image_ext = strtolower(end(explode('.', $image_name))); 

$image_ext = pathinfo($image_name, PATHINFO_EXTENSION); 

$album_id = $_SESSION['varname']; 

$errors = array(); 

if (empty($image_name) || empty($album_id) || empty($image_n) ||   empty($image_description)) { 

    $errors[] = 'Something is missing'; 
} else { 

if (strlen($album_name) > 55 || strlen($album_description) > 255) { 
     $errors[] = 'One or more fields contains too many characters'; 
    } 

if (in_array($image_ext, $allowed_ext) === false) { 
    $errors[] = 'File type not allowed'; 

} 

//if ($image_size > 2097152) { 
// $errors[] = 'Maximum file size is 2mb'; 
//} 

if (album_check($album_id) === false) { 
    $errors[] = 'Couldn\'t upload to that album'; 
} 

} 

if (!empty($errors)) { 
    foreach ($errors as $error) { 
     echo $error, '<br />'; 
    } 

} else { 
    $byte = formatSizeUnits($bytes); 
    upload_image($image_temp, $image_ext, $album_id, $image_n, $image_description, $byte); 
    header('Location: view_album.php?album_id='.$album_id); 
    exit(); 
} 
} 

$albums = get_albums(); 

if (empty($albums)) { 
echo'<p>You don\'t have any albums. <a href="create_album.php">Create an album</a></p>'; 
} else { 
?> 

<form action="" method="post" enctype="multipart/form-data"> 
<div class="choose"> 
    <p>Choose a file:<br /><input type="file" name="image" /></p> 
    </div> 
     <div class="des"> 
     <p>Name*:<br /><input type="text" name="image_n" maxlength="55"/></p> 
     <p>Description*:<br /><textarea name="image_description" rows="6" cols="35" maxlength="255"></textarea></p> 


    <p><input type="submit" value="Upload" /></p> 
    </div> 
</form> 
<div class="foot"> 
<?php 
} 

include 'template/footer.php'; 
?> 
</div> 

形式在第二页的末尾不加载..但是当我删除主页面的第一行$ var_value = 7;在结束加载的形式..我不知道是什么问题或者有其他方式来设置主要相册值并将其传递到包含页面

Answer 1

如果没有在$album_id发现的问题，这是从$var_value设置，所包含的文件执行：

$byte = formatSizeUnits($bytes); 
upload_image($image_temp, $image_ext, $album_id, $image_n, $image_description, $byte); 
header('Location: view_album.php?album_id='.$album_id); 
exit(); 

所以它永远不会获取显示形式的一部分。

Answer 2

第二个代码是包含在内？如果是的话比你可以只使用

$album_id = $var_value 

相反的：

$album_id = $_SESSION['varname']; 

在代码的第二次和平...无需一个会话。