layui+php实现多文件上传(附代码)

layui+php实现多文件上传(附代码)

效果:

1.jpg

HTML代码:

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<!-- 兼容 -->
		<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0" />
		<!-- 引入layui样式 -->
		<link rel="stylesheet" href="layui/css/layui.css">
		<!-- 引入layui js -->
		<script src="layui/layui.js" type="text/javascript" charset="utf-8"></script>
		<!-- 引入jquery -->
		<script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script>
		<!-- 引入bootstrap样式 -->
		<link rel="stylesheet" href="bootstrap/css/bootstrap.css">
		<!-- 引入bootstrap js -->
		<script src="bootstrap/js/bootstrap.js" type="text/javascript" charset="utf-8"></script>
	</head>
 
	<body>
		<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
			<legend>多文件</legend>
		</fieldset>
 
		<div class="layui-upload">
			<button type="button" class="layui-btn" id="uploadId">选择上传文件</button>
			<div class="layui-inline layui-word-aux">
			</div>
			<blockquote class="layui-elem-quote layui-quote-nm" style="margin-top: 10px;">
				预览图:
				<div class="layui-upload-list" id="show"></div>
			</blockquote>
		</div>
		<script type="text/javascript">
			layui.use('upload', function() {
				var upload = layui.upload,
					$ = layui.jquery;
				var uploadInst = upload.render({
					elem: '#uploadId',
					accept: 'file', //指定允许上传时校验的文件类型,可选值有:images(图片)、file(所有文件)、video(视频)、audio(音频)
					multiple: 'true',
					url: 'http://localhost/guanwnag/php/up.php',
					before: function(obj) {
						//预读本地文件示例,不支持ie8
						obj.preview(function(index, file, result) {
							if ((file.type).indexOf("image") >= 0) {
								$('#show').append('<img src="/Uploads/' + result + '" alt="' + file.name +
									'" class="layui-upload-img" style="max-width:100%">')
							} else {
								$('#show').append(file.name)
							}
							// console.log(file);
 
						});
					},
					done: function(res) {
						layer.msg(res.msg, {
							time: '5000',
							tipsMore: true,
							zIndex: '2'
						});
 
					},
					allDone: function(obj) { //当文件全部被提交后,才触发
						$('.layui-word-aux').append("执行完毕,文件总数:" + obj.total + "成功:" + obj.successful + "个,失败:" + obj.aborted + "个");
						console.log(obj.total); //得到总文件数
						console.log(obj.successful); //请求成功的文件数
						console.log(obj.aborted); //请求失败的文件数
					},
					error: function() {
 
						//请求异常
					}
 
				});
			});
		</script>
	</body>
 
</html>

PHP代码:

<?php
    header("Access-Control-Allow-Origin: *"); //解决跨域
    header('Access-Control-Allow-Methods:post');// 响应类型
    date_default_timezone_set('PRC');//获取当前时间
//上传文件目录获取
$month = date('Ym', time());
define('BASE_PATH', str_replace('\\', '/', realpath(dirname(__FILE__).'/'))."/");
$dir = BASE_PATH."upload/".$month."/";
 
//初始化返回数组
$arr = array(
'code' => 0,
'msg'=> '',
'data' =>array(
     'src' => $dir . $_FILES["file"]["name"]
     ),
);
 
$file_info = $_FILES['file'];
 $file_error = $file_info['error'];
if (!is_dir($dir)) {//判断目录是否存在
    mkdir($dir, 0777, true);//如果目录不存在则创建目录
};
$file = $dir.$_FILES["file"]["name"];
if (!file_exists($file)) {
    if ($file_error == 0) {
        if (move_uploaded_file($_FILES["file"]["tmp_name"], $dir. $_FILES["file"]["name"])) {
            $arr['msg'] ="上传成功";
        } else {
            $arr['msg'] = "上传失败";
        }
    } else {
        switch ($file_error) {
            case 1:
           $arr['msg'] ='上传文件超过了PHP配置文件中upload_max_filesize选项的值';
                break;
            case 2:
              $arr['msg'] ='超过了表单max_file_size限制的大小';
                break;
            case 3:
               $arr['msg'] ='文件部分被上传';
                break;
            case 4:
              $arr['msg'] ='没有选择上传文件';
                break;
            case 6:
                $arr['msg'] ='没有找到临时文件';
                break;
            case 7:
            case 8:
               $arr['msg'] = '系统错误';
                break;
        }
    }
} else {
    $arr['code'] ="1";
    $arr['msg'] = "当前目录中,文件".$file."已存在";
}
 
echo json_encode($arr);

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