php 消息警告:多部分/表单数据 POST 数据在第 0 行的“未知”中缺少边界
2022-08-30 21:52:56
这是我的javascript
function ajax_post(){
// Create our XMLHttpRequest object
var hr = new XMLHttpRequest();
// Create some variables we need to send to our PHP file
var url = "LiveUpdate.php";
var sb = document.getElementById("LiveUpdate").value;
var FirstName = document.getElementById("FirstName").value;
var images = document.getElementById("images").value;
var vars = "update="+sb+"&FirstName="+FirstName+"&images="+images;
hr.open("POST", url, true);
// Set content type header information for sending url encoded variables in the request
hr.setRequestHeader("Content-type", "multipart/form-data");
// Access the onreadystatechange event for the XMLHttpRequest object
hr.onreadystatechange = function() {
if(hr.readyState == 4 && hr.status == 200) {
var return_data = hr.responseText;
document.getElementById("message").innerHTML = return_data;
}
}
// Send the data to PHP now... and wait for response to update the status div
var formData = new FormData(document.querySelector("form"));
hr.send(formData); // Actually execute the request // Actually execute the request
document.getElementById("message").innerHTML = "processing...";
}
//show image before uploading
var loadFile = function(event) {
var output = document.getElementById('output');
output.src = URL.createObjectURL(event.target.files[0]);
};//end image
这就是形式。javascript 和表单位于同一文件中。文件名为示例.php
<form action="popup.php" method="post" id="myForm" name="myForm" enctype="multipart/form-data">
<div id="message"></div>
<img src="" id="output" />
<input type="file" class="filestyle" data-buttonBefore="true" accept=".png, .jpg, .jpeg" onchange="loadFile(event)" name="images" id="images">
<input class="form-control" type="text" placeholder="First Name" name="FirstName" id="FirstName" value="">
<a href="#" class="btn btn-success" role="button" name="update" id="LiveUpdate" onclick="javascript:ajax_post();">Update</a>
</form>
这段代码中的想法是。我想将名字和图像等基本信息插入数据库,而无需刷新页面。我选择标签提交ajax的原因。所以页面网址帐户.php?Edit=1 不会更改为帐户.php因为如果它更改为帐户.php则弹出编辑模式将关闭。此代码中的问题是。我不知道如何修复错误,任何人都可以帮我解决这个问题。谢谢!Warning: Missing boundary in multipart/form-data POST data in Unknown on line 0