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layui+php implements multiple file uploads (with code)

angryTomforward: 2019-11-30 17:23:195875browse

效果：

layui+php implements multiple file uploads (with code)

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(&#39;upload&#39;, function() {
				var upload = layui.upload,
					$ = layui.jquery;
				var uploadInst = upload.render({
					elem: &#39;#uploadId&#39;,
					accept: &#39;file&#39;, //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: &#39;true&#39;,
					url: &#39;http://localhost/guanwnag/php/up.php&#39;,
					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) {
								$(&#39;#show&#39;).append(&#39;<img class="layui-upload-img lazy"  src="/static/imghwm/default1.png"  data-src="&#39; + result + &#39;"   alt="&#39; + file.name +
									&#39;"  style="max-width:100%">&#39;)
							} else {
								$(&#39;#show&#39;).append(file.name)
							}
							// console.log(file);
 
						});
					},
					done: function(res) {
						layer.msg(res.msg, {
							time: &#39;5000&#39;,
							tipsMore: true,
							zIndex: &#39;2&#39;
						});
 
					},
					allDone: function(obj) { //当文件全部被提交后，才触发
						$(&#39;.layui-word-aux&#39;).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(&#39;Access-Control-Allow-Methods:post&#39;);// 响应类型
    date_default_timezone_set(&#39;PRC&#39;);//获取当前时间
//上传文件目录获取
$month = date(&#39;Ym&#39;, time());
define(&#39;BASE_PATH&#39;, str_replace(&#39;\\&#39;, &#39;/&#39;, realpath(dirname(__FILE__).&#39;/&#39;))."/");
$dir = BASE_PATH."upload/".$month."/";
 
//初始化返回数组
$arr = array(
&#39;code&#39; => 0,
&#39;msg&#39;=> &#39;&#39;,
&#39;data&#39; =>array(
     &#39;src&#39; => $dir . $_FILES["file"]["name"]
     ),
);
 
$file_info = $_FILES[&#39;file&#39;];
 $file_error = $file_info[&#39;error&#39;];
if (!is_dir($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[&#39;msg&#39;] ="上传成功";
        } else {
            $arr[&#39;msg&#39;] = "上传失败";
        }
    } else {
        switch ($file_error) {
            case 1:
           $arr[&#39;msg&#39;] =&#39;上传文件超过了PHP配置文件中upload_max_filesize选项的值&#39;;
                break;
            case 2:
              $arr[&#39;msg&#39;] =&#39;超过了表单max_file_size限制的大小&#39;;
                break;
            case 3:
               $arr[&#39;msg&#39;] =&#39;文件部分被上传&#39;;
                break;
            case 4:
              $arr[&#39;msg&#39;] =&#39;没有选择上传文件&#39;;
                break;
            case 6:
                $arr[&#39;msg&#39;] =&#39;没有找到临时文件&#39;;
                break;
            case 7:
            case 8:
               $arr[&#39;msg&#39;] = &#39;系统错误&#39;;
                break;
        }
    }
} else {
    $arr[&#39;code&#39;] ="1";
    $arr[&#39;msg&#39;] = "当前目录中，文件".$file."已存在";
}
 
echo json_encode($arr);

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