我可以使用mysql blob(msword或pdf)成功上传文档。现在我需要帮助下载它。
这是我的下载按钮代码。
<form id="specificationdownload">
<input type="hidden" name="cusid" id="cusid" value = "<?php echo $row['id_stk']?>">
<button class="btn btn-success" name="downloadspec" type="submit">Download </button>
</form>
这是我处理下载按钮表格的Ajax代码
//Specification download
$("form#specificationdownload").on("submit",function(e){
e.preventDefault();
jQuery.ajax({
url: "../data/stock.php?action=stock-specification-download",
type: "POST",
data: new FormData(this),
processData: false,
contentType: false,
success: function(data, textStatus, jqXHR) {
console.log(2);
var filter = "<?php echo $id_stc ?>";
var tab_content_to_change = "#stock-sub-list";
jQuery(tab_content_to_change).load('/tasks/stock/stock-list.php?filter='+filter);
},
error: function(jqXHR, textStatus, errorThrown){
//Display error message to user
alert("An error occured when saving the data");
}
});
});
这是我的行动
$CustomerID = $_POST['cusid'];
if(isset( $CustomerID ))
{
//Query
$prepare_query = "SELECT specificationsheet_name_stk,specificationsheet_type_stk,specificationsheet_size_stk, specificationsheet_stk FROM stock_stk
WHERE id_stk ='$CustomerID';";
$result = mysqli_query($mysqli_scs, $prepare_query);
$row = mysqli_fetch_array ($result);
//die(var_dump($row));
header("Content-length:" .$row['specificationsheet_size_stk']);
header("Content-type:" .$row['specificationsheet_type_stk']);
header("Content-Disposition: attachment; filename=".$row['specificationsheet_name_stk']);
return $row['specificationsheet_stk'];
exit;
}
问题是当我点击&#34;下载&#34;按钮,文件没有下载。如果我var_Dump
$row
,它会使用右键转储数组,因此对象就在那里,但不会打印。
任何人都知道我做错了什么。
谢谢。