input tag file type, select multiple files to upload-PHP Tutorial-php.cn

input tag file type, select multiple files to upload

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Release： 2016-07-28 08:26:20

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html page

    <!DOCTYPE html>  
    <html>  
        <head>  
            <meta charset="UTF-8"/>  
            <title>xhr2</title>  
        </head>  
        <body>      
            <div style="text-align:center;margin:100px">        
                <input type="file" id="file" name="file" multiple="multiple">  
                <button /button>  
            </div>          
            <script>  
            function xhr2(){  
                var xhr = new XMLHttpRequest();//第一步  
                //定义表单变量  
                var file = document.getElementById('file').files;  
                //console.log(file.length);  
                //新建一个FormData对象  
                var formData = new FormData(); //++++++++++  
                //追加文件数据  
                for(i=0;i<file.length;i++){    
                     formData.append("file["+i+"]", file[i]); //++++++++++  
                }   
                //formData.append("file", file[0]); //++++++++++  
                  
                //post方式  
                xhr.open(&#39;POST&#39;, &#39;xhr2.php&#39;); //第二步骤  
                //发送请求  
                xhr.send(formData);  //第三步骤  
                //ajax返回  
                xhr.onreadystatechange = function(){ //第四步  
            　　　　if ( xhr.readyState == 4 && xhr.status == 200 ) {  
            　　　　　　console.log( xhr.responseText );  
            　　　　}  
            　　};  
                //设置超时时间  
                xhr.timeout = 100000;  
                xhr.ontimeout = function(event){  
            　　　　alert(&#39;请求超时！&#39;);  
            　　}   
            }  
            </script>  
        </body>  
    </html>

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php processing page input标签file类型，选择多个文件进行上传

    <?php  
    print_r($_FILES["file"]);  
      
    for($i=0;$i<count($_FILES["file"][&#39;name&#39;]);$i++){  
    $name=$_FILES["file"]["name"][$i];  
    move_uploaded_file($_FILES["file"]["tmp_name"][$i],iconv("UTF-8","gb2312",$name));  
    }  
      
    ?>

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The above introduces the input tag file type, selecting multiple files for uploading, including related content. I hope it will be helpful to friends who are interested in PHP tutorials.