时间:2021-07-01 10:21:17 帮助过:17人阅读
PHP dofile.php 文件上传源码
- <?php
- $file_upload = "upload/";
- $file_allow_ext='gif|jpg|jpeg|png|gif|zip|rar|ppt|xls|pdf|pptx|xlsx|docx';
- $file_allow_size = 5*1024*1024;
- if($_POST['submit']=="上传"){
- if(is_uploaded_file($_FILES['file']['tmp_name'])){
- $file_name = $_FILES['file']['name'];
- $file_error = $_FILES['file']['error'];
- $file_type = $_FILES['file']['type'];
- $file_tmp_name = $_FILES['file']['tmp_name'];
- $file_size = $_FILES['file']['size'];
- $file_ext = substr($file_name, strrpos($file_name, '.')+1);
- switch($file_error){
- case 0:
- $data['status'] = 0;
- $data['msg'] = "文件上传成功!";
- break;
- case 1:
- $data['status'] = 1;
- $data['msg'] = "文件上传失败,文件大小".$file_size."超过限制,允许上传大小".sizeFormat($file_allow_size)."!";
- break;
- case 3:
- $data['status'] = 1;
- $data['msg'] = "上传失败,文件只有部份上传!";
- break;
- case 4:
- $data['status'] = 1;
- $data['msg'] = "上传失败,文件没有被上传!";
- break;
- case 5:
- $data['status'] = 1;
- $data['msg'] = "文件上传失败,文件大小为0!";
- break;
- }
- if(stripos($file_allow_ext,$file_ext)===false){
- $data['status'] = 1;
- $data['msg'] = "该文件扩展名不允许上传";
- }
- if($file_size>$file_allow_size){
- $data['status'] = 1;
- $data['msg'] = "文件大小超过限制,只能上传".sizeFormat($file_allow_size)."的文件!";
- }
- if($data['status']==1){
- $data['status'] = 1;
- $data['msg'] = $data['msg'];
- exit(json_encode($data));
- }
- if($data['status']==0){
- if(file_exists($file_upload)){
- $file_new_name = date("YmdHis").'_'.rand(10000,99999).'.'.$file_ext;
- $file_save_path = $file_upload.$file_new_name;
- $data['status'] = 0;
- $data['url'] = $file_save_path;
- move_uploaded_file($file_tmp_name,$file_save_path);
- exit(json_encode($data));
- }else{
- exit(json_encode($data));
- }
- }
- }
- }
- function sizeFormat($size)
- {
- $sizeStr='';
- if($size<1024)
- {
- return $size."bytes";
- }
- else if($size<(1024*1024))
- {
- $size=round($size/1024,1);
- return $size."KB";
- }
- else if($size<(1024*1024*1024))
- {
- $size=round($size/(1024*1024),1);
- return $size."MB";
- }
- else
- {
- $size=round($size/(1024*1024*1024),1);
- return $size."GB";
- }
- }
- ?>
HTML如下
- <script type="text/javascript" src="http://lib.sinaapp.com/js/jquery/1.9.1/jquery-1.9.1.min.js"></script>
- <script type="text/javascript" src="http://files.cnblogs.com/files/china-li/jquery.form.js"></script>
- <form action="dofile.php" method="post" enctype="multipart/form-data" id="upfileimage">
- <input type="hidden" name="image[]" />
- <label for="file">文件:</label><input type="file" name="file" id="file" />
- <input type="submit" name="submit" value="上传" />
- </form>
- <script type="text/javascript">
- $("#upfileimage").submit(function(){
- if($("input[type=file]").val()==""){
- alert("请选择要上传的文件");
- return false;
- }
- })
- $(function(){
- var options = {
- type:"POST",
- dataType:"json",
- resetForm:true,
- success:function(o){
- if(o.status==1){
- alert(o.msg);
- }else{
- $("body").append(" <img src='"+o.url+"' alt='' width='100' /><input type='hidden' name='image[]' value='"+o.url+"' />");
- }
- },
- error:function(o){
- alert(o.message);
- }
- }
- $("#upfileimage").ajaxForm(options).submit(function(){return false;});
- })
- </script>
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