如何通过jQuery将文件发送到PHP? [英] How to send file to php via jQuery?

问题描述

我尝试通过jQuery将文件发送到PHP文件进行处理.

I try send a file via jQuery to a PHP file for processing.

<form action="help-uploader.php" method="POST" class="signup" id="upform" enctype="multipart/form-data">

   <input type="text" id="title" name="title" tabindex="1" value="">
   <input id="file" type='file'" />
   <button class="submitbtn" id="submit">submit</button>
</form>

和jQuery:

$(document).ready(function(){
        $('#submit').click(function (e) {
        // custom handling here
            e.preventDefault();
            var ititle = $("#title").val();
            var ifile = $("#file").val();

            $.post("help-uploader.php",
                {
                    title: ititle,
                    file: ifile
                },function(data, status){alert("Data: " + data + "\nStatus: " + status);});
        });
    });

和 ** help-uploader.php **

<?php
echo $_POST['file'];
echo basename($_FILES["file"]["name"]);
?>

第一个ECHO打印客户端中文件的路径.

First ECHO prints path of file in client.

第二个ECHO不打印任何内容.

Second ECHO not prints anything.

如何通过jQuery正确地将文件发送到PHP?

How can I send a file to PHP via jQuery correctly?

推荐答案

您需要使用formdata.我提供了一个示例函数，该函数接受参数，即表单引用和函数回调来执行操作.此函数将表单提交上的事件绑定在一起.尝试以下-

You need to use formdata . I am providing a example function which takes arguments ,i.e form refrence and functions callback to do stuff.This function binds event on your form submit. Try below-

function sendAjaxForm(frm,callbackbefore,callbackdone)
    {
        var form = frm;
        form.submit(function(event){
            event.preventDefault();
            var formData = new FormData(this);
            var ajaxReq=$.ajax({
                url: $(this).attr('action'),
                type: $(this).attr('method'),
                data: formData,
                async: false,
                cache: false,
                contentType: false,
                processData: false,
                beforeSend: callbackbefore
                });
            ajaxReq.done(callbackdone);
        }); // submit done
    }

现在像您的示例一样调用该函数

Now call that function as in your example

sendAjaxForm($('#upform'),function(){alert('sending');},function(data){alert("Data: " + data);})

这篇关于如何通过jQuery将文件发送到PHP?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！