php上传图片并预览

来源：互联网发布：php 数字转二进制编辑：程序博客网时间：2024/06/05 17:42

PHP代码

<?phpheader("Content-type:text/html;charset=utf-8");$upFile = $_FILES['file'];/*** 创建文件夹函数,用于创建保存文件的文件夹* @param str $dirPath 文件夹名称* @return str $dirPath 文件夹名称*/    function creaDir($dirPath){        $curPath = dirname(__FILE__);        $date = date('Y-m-d',time());        $path = $curPath.'\\'.$dirPath.'\\'.$date;        if (is_dir($path) || mkdir($path,0777,true)) {            return $dirPath;        }    }    //判断文件是否为空或者出错    if ($upFile['error']==0 && !empty($upFile)) {        $dirpath = creaDir('upload1');        $filename = iconv("utf-8","gbk",$_FILES['file']['name']);        $date = date('Y-m-d',time());        $queryPath = './'.$dirpath.'/'.$date.'/'.$filename;        // 判断上传的是不是图片        if($_FILES['file']['type'] == 'image/jpeg' || $_FILES['file']['type']=='image/jpg'){            //move_uploaded_file将浏览器缓存file转移到服务器文件夹            if(move_uploaded_file($_FILES['file']['tmp_name'],$queryPath)){                $filename = iconv("utf-8","utf-8",$_FILES['file']['name']);                $queryPath = './'.$dirpath.'/'.$date.'/'.$filename;                echo $queryPath;            }        }    }?>

解决上传的图片文件名中文乱码：

$filename = iconv("utf-8","gbk",$_FILES['file']['name']);

解决无法预览的问题:

$filename = iconv("utf-8","utf-8",$_FILES['file']['name']);

html代码

<!DOCTYPE html><html><head>    <meta charset="utf-8">    <title>上传图片</title>    <script src="./js/jquery-1.10.2.min.js"></script>    <script type="text/javascript">        $(function(){            $('div').css('color','red');            $("#up").click(function() {    　　　　    //formdata储存异步上传数据                var formData = new FormData($('form')[0]);                formData.append('file',$(':file')[0].files[0]);                //坑点: 无论怎么传数据,console.log(formData)都会显示为空,但其实值是存在的,f12查看Net tab可以看到数据被上传了0                $.ajax({                    url:'./upload.php',                    type: 'POST',                    data: formData,                    //这两个设置项必填                    contentType: false,                    processData: false,                    success:function(data){                        // console.log(data)                        var srcPath = data;                        //console.log(111);        　　　　        //注意这里的路径要根据自己的储存文件的路径设置                        $('.picDis img').attr('src',srcPath);                    }                })            });        });    </script></head><body>    <form enctype="multipart/form-data" id="upForm">        <input type="file" name="file" ><br><br>        <input type="button" value="提交" id="up">    </form>    <div class="picDis">        <img src="" alt="">    </div></body></html>

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