ajax 异步插入图片到数据库（多图上传）

    额 大概就这么个样子。。。截个图

点浏览  选择几张图片 选择完了 确定一下 然后插入数据库 同时在页面中显示插入的图片，代码 也没啥。看下

index.php

 

<html>
<head>
    <title>多图上传来咯</title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <script src="http://www.freejs.net/demo/99/js/jquery.min.js" type="text/javascript"></script>
    <script src="http://www.freejs.net/demo/99/js/jquery.wallform.js" type="text/javascript"></script>



    <script>
        $(document).ready(function() {

            $('#photoimg').die('click').live('change', function()           {
                //$("#preview").html('');

                $("#imageform").ajaxForm({target: '#preview',
                    beforeSubmit:function(){

                        console.log('ttest');
                        $("#imageloadstatus").show();
                        $("#imageloadbutton").hide();
                    },
                    success:function(){
                        console.log('test');
                        $("#imageloadstatus").hide();
                        $("#imageloadbutton").show();
                    },
                    error:function(){
                        console.log('xtest');
                        $("#imageloadstatus").hide();
                        $("#imageloadbutton").show();
                    } }).submit();


            });
        });
    </script>


</head>
<body>

<div id='preview'>
</div>

<form id="imageform" method="post" enctype="multipart/form-data" action='ajaxImageUpload.php' style="clear:both">
    <h1>请选择图片上传，多图片可以上传</h1>
    <div id='imageloadstatus' style='display:none'><img src="img/gd.gif" alt="Uploading...."/></div>
    <div id='imageloadbutton'>
        <input type="file" name="photos[]" id="photoimg" multiple="true" />
    </div>
</form>


</div>



</body>
</html>


ajaximageupload.php



<?php
error_reporting(0);
session_start();
include('conn.php');

$session_id='1'; //$session id
define ("MAX_SIZE","90000000");
function getExtension($str)
{
    $i = strrpos($str,".");
    if (!$i) { return ""; }
    $l = strlen($str) - $i;
    $ext = substr($str,$i+1,$l);
    return $ext;
}


$valid_formats = array("jpg", "png", "gif", "bmp","jpeg");
if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST")
{

    $uploaddir = "/DoExercise/uploadimgs/image/"; //a directory inside
    foreach ($_FILES['photos']['name'] as $name => $value)
    {

        $filename = stripslashes($_FILES['photos']['name'][$name]);
        $size=filesize($_FILES['photos']['tmp_name'][$name]);
        //get the extension of the file in a lower case format
        $ext = getExtension($filename);
        $ext = strtolower($ext);

        if(in_array($ext,$valid_formats))
        {
            if ($size < (MAX_SIZE*1024*10))
            {
                $image_name=time().$filename;
                echo "<img src='".$uploaddir.$image_name."' class='imgList'>";
                $newname=$uploaddir.$image_name;
                echo $newsname;
                if (move_uploaded_file($_FILES['photos']['tmp_name'][$name],$_SERVER['DOCUMENT_ROOT'].$newname))
                {
                    $time=time();
                    mysql_query("INSERT INTO user_uploads(image_name,user_id_fk,created) VALUES('$image_name','$session_id','$time')");
                }
                else
                {
                    echo '<span class="imgList">你已经超过了尺寸限制! so moving unsuccessful! </span>';
                }

            }
            else
            {
                echo '<span class="imgList">你已经超过了大小限制!</span>';

            }

        }
        else
        {
            echo '<span class="imgList">Unknown extension!</span>';

        }

    }
}

?>

就这些吧  想点击提交按钮 再提交也行 ，那就加个判断呗。什么时候点击确定按钮 触发了事件 就再走insert呗。
额 源码也有，找我就行 ，认准大白驴
posted @ 2015-09-19 16:43  大白驴  阅读(711)  评论(0)  编辑  收藏  举报