PHP post变量没有被渲染

-2

我有一个PHP程序，它接受一个图像名称并加载图像，并在页面上显示名称和图像。PHP post变量没有被渲染

中的javascrip变量写成

var latest_image_name = '<?=$post_img_name?>';

的PHP代码是

<?php 
     foreach($files_assoc_array_keys as $file_name){ 
      if($file_name==$post_img_name){ 
      ?> 
      <label class="lbl_image_name active"><?=$file_name?></label> 
      <?php 
      }else{ 
      ?> 
      <label class="lbl_image_name"><?=$file_name?></label> 
      <?php 
      } 
     } 
     ?>

HTML输出，被渲染为

<div id="image_list_wrapper"> 
        <label class="lbl_image_name"><?=$file_name?></label> 
        </div>

正如你可以看到它似乎PHP并没有用发布的图像名称替换标签。

代码工作，这是对，当我把它迁移到另一台服务器不工作开发的原始服务器上，我曾尝试其他两台服务器都Centos的6.4与Apache和PHP安装。我不确定原始服务器的设置与它的工作方式相同。

完整的代码被视为低于

<?php 
header('Refresh: 5; URL=display.php'); 
print_r($_POST['post_img_name']); 
$target_directory = "uploaded_images"; 

if(!file_exists($target_directory)){ 
    mkdir($target_directory); 
} 



if(isset($_POST['del_image'])) { 
    $del_image_name = $_POST['del_img_name']; 
    if(file_exists($target_directory."/".$del_image_name.".jpg")){ 
     unlink($target_directory."/".$del_image_name.".jpg"); 
    } 
if(is_dir_empty($target_directory)){ 
     die("Last image delete. No images exist now."); 
} 
    $post_img_name = basename(get_latest_file_name($target_directory), '.jpg'); 

}else if(isset($_POST['post_img_name'])){ 
    $post_img_name=$_POST['post_img_name']; 
    $post_img_temp_name = $_FILES['post_img_file']['tmp_name']; 
}else{ 
    $post_img_name = basename(get_latest_file_name($target_directory), '.jpg'); 
} 

$files_array = new DirectoryIterator($target_directory); 
$total_number_of_files = iterator_count($files_array) - 2; 
$files_assoc_array = array(); 


$already_exists = "false"; 
if($total_number_of_files != 0){ 
    foreach ($files_array as $file_info){ 
     $info = pathinfo($file_info->getFilename()); 
     $filename = $info['filename']; 
     if ($filename==$post_img_name) { 
      $already_exists = "true"; 
     } 
    } 
} 

if(!isset($_POST['del_image']) && isset($_POST['post_img_name'])){ 
    $target_file = "$target_directory"."/".$post_img_name.".jpg"; 
    $source_file = $post_img_temp_name; 



    if($already_exists == "true"){ 
     unlink($target_file); 
    } 
    move_uploaded_file($source_file, $target_file); 
} 



foreach ($files_array as $file_info){ 
    $info = pathinfo($file_info->getFilename()); 
    $filename = $info['filename']; 
    if(!$file_info->isDot()){ 
     $files_assoc_array[$filename] = $target_directory."/".$file_info->getFilename(); 
    } 
} 

$files_assoc_array_keys = array_keys($files_assoc_array); 

function get_latest_file_name($target_directory){ 
    $files_array = new DirectoryIterator($target_directory); 
    $total_number_of_files = iterator_count($files_array) - 2; 
    $timestamps_array = array(); 

    if($total_number_of_files!=0){ 
     foreach($files_array as $file){ 
      if(!$file->isDot()){ 
       $timestamps_array[filemtime($target_directory."/".$file)] = $file->getFilename(); 
      } 
     } 
    } 
    $max_timestamp = max(array_keys($timestamps_array)); 
    return $timestamps_array[$max_timestamp]; 

} 
function is_dir_empty($dir) { 
    if (!is_readable($dir)) 
     return NULL; 
    $handle = opendir($dir); 
    while (false !== ($entry = readdir($handle))) { 
     if ($entry != "." && $entry != "..") { 
      return FALSE; 
     } 
    } 
    return TRUE; 
} 

?><!DOCTYPE html> 
<html> 
<head> 
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
    <title></title> 
    <link rel="stylesheet" href="css/style.css"/> 
    <script type="text/javascript" src="js/jquery.min.js"></script> 
    <script> 
    $(document).ready(function(){ 
     var files_array_text = '<?php echo implode(", ", $files_assoc_array)?>'; 
     var files_array_keys_text = '<?php echo implode(", ", $files_assoc_array_keys)?>'; 

     var files_array = files_array_text.split(", "); 
     var files_array_keys = files_array_keys_text.split(", "); 

     var files_assoc_array = createAssociativeArray(files_array_keys, files_array); 

     var latest_image_name = '<?=$post_img_name?>'; 
     display_image(latest_image_name); 


     $('.lbl_image_name').click(function(){ 
      $('#img_loading').show(); 
      $('#img_display').hide(); 

      var image_name = $(this).text(); 
      $('.active').removeClass('active'); 
      $(this).addClass('active'); 

      display_image(image_name); 
     }); 

     function createAssociativeArray(arr1, arr2) { 
      var arr = {}; 
      for(var i = 0, ii = arr1.length; i<ii; i++) { 
       arr[arr1[i]] = arr2[i]; 
      } 
      return arr; 
     } 

     function display_image(image_name){ 
      var image_path = files_assoc_array[image_name]; 
      $('#img_display').attr('src', image_path); 
      $('#img_display').load(image_path, function(){ 
       $('#img_loading').hide(); 
       $('#img_display').show(); 
      }) 

     } 
    }); 
    </script> 
</head> 
<body> 
    <div id="container"> 
     <div id="image_list_wrapper"> 
      <?php 
      foreach($files_assoc_array_keys as $file_name){ 
       if($file_name==$post_img_name){ 
        ?> 
        <label class="lbl_image_name active"><?=$file_name?></label> 
        <?php 
       }else{ 
        ?> 
        <label class="lbl_image_name"><?=$file_name?></label> 
        <?php 
       } 
      } 
      ?> 
     </div> 
     <div class="separator"></div> 
     <div id="image_display_wrapper"> 
      <div id="img_loading_wrapper"> 
       <img src="images/loading.gif" id="img_loading"/> 
      </div> 

      <img src="" id="img_display"/> 
     </div> 
     <div style="clear: both"> 

     </div> 
    </div> 
    <a href="index.php">Go Back</a> 
</body> 
</html>

来源

2013-09-29 Beraben Systems

你确定使用''适用于您的服务器？尝试使用'' – jdepypere