顯示一些文字後在php下載文件

Question

嗨，我需要創建文件下載。下載和表單驗證和dB插入的填寫表單都在同一頁面中。如果表單被提交，則需要使用另存爲窗口自動觸發文件下載。我寫的代碼爲：

if(isset($_POST['submit'])){ 
$u=$_POST['uname']; 
/*similarly getting all posted data*/ 
echo '<br><b>'.JText::_('Thank you for submitting your details...').'</b>'; 
$db =& JFactory::getDBO(); 
    $query = "/*db inserting query*/"; 
    $db->setQuery($query); 
    $db->query(); 

    $filee= basename($path); /*$path contains value form $_POST*/ 
    $full='http://localhost/joomla/images/uploads/'.$filee; 

    ?> 
<br><b> 
    <span>If the download does not start automatically in a few seconds, <a href="<?php  echo JURI::base(); ?>/images/myfile/<?php echo $filee;?>" target="_blank"><b> Click this link</b></a></span></b> 


<?php 


    header('Content-Description:File Transfer'); 
    header("Content-type:application/pdf"); 
    header("Content-type:application/zip"); 
    header("Content-type:image/jpeg"); 
    header("Content-type:image/png"); 
    header("Content-type:application/msword"); 
    header("Content-Disposition: attachment; filename=".$filee.""); 
    header("Cache-control: private"); 
    readfile($full); 


    } 
else{ code for printing fill up form} 

我需要打印的「感謝提交..」 ..等消息之前downloading.but現在，當我提交填寫表格的下載與顯示出上面的文字開始。等待一段時間後我應該怎麼做下載？

Answer 1

您可以使用sleep()在php耽誤execution.So嘗試這樣

if(isset($_POST['submit'])){ 
$u=$_POST['uname']; 
echo '<br><b>'.JText::_('Thank you for submitting your details...').'</b>'; 
$db =& JFactory::getDBO(); 
    $query = "/*db inserting query*/"; 
    $db->setQuery($query); 
    $db->query(); 
    $filee= basename($path); /*$path contains value form $_POST*/ 
    $full='http://localhost/joomla/images/uploads/'.$filee; 

    ?> 
<br><b> 
    <span>If the download does not start automatically in a few seconds, <a href="<?php  echo JURI::base(); ?>/images/myfile/<?php echo $filee;?>" target="_blank"><b> Click this link</b></a></span></b> 


<?php 

    sleep(10);//Will delay for 10 seconds 

    header('Content-Description:File Transfer'); 
    header("Content-type:application/pdf"); 
    header("Content-type:application/zip"); 
    header("Content-type:image/jpeg"); 
    header("Content-type:image/png"); 
    header("Content-type:application/msword"); 
    header("Content-Disposition: attachment; filename=".$filee.""); 
    header("Cache-control: private"); 
    readfile($full); 


    } 
else{ code for printing fill up form}