PHP多文件上传类实例

2020-03-22 17:34:08

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本文实例讲述了PHP多文件上传类。分享给大家供大家参考。具体如下：
复制代码代码如下: php
/*
PHP多文件上传类
修改：Linvo 2008-2-15
*/
html' target='_blank'>class more_file_upload{
const FILE_PATH='../upfileclass/uploadfile/';
var $file_type;
var $file_type_array;
var $file_type_real_array;
var $file_type_string;
var $file_name;
var $file_size;
var $file_tmp_name;
var $file_error;
var $handledate;
var $totalsize=0;

function __construct($file_name,$file_error,$file_size,$file_tmp_name,$file_type){
$this- handledate=date('m-d-Y');
if (!empty($file_name)){
$this- $file_name = $file_name;
$this- $file_error = $file_error;
$this- $file_size = $file_size;
$this- $file_tmp_name = $file_tmp_name;
$this- $file_type = $file_type;
$this- $file_type_array = array('/', 'image/gif', 'image/jpg', 'image/jpeg', 'image/pjpeg', 'image/png');
$this- $file_type_real_array = array(0.1, 'jpg'= 74707370, 'gif'= 7173, 'bmp'= 6677, 'png'= 807871);
$this- show_execute_message($this- $file_error,$this- $file_name,$this- $file_type,$this- $file_size);
}
}

function __destruct(){
$this- $file_name = NULL;
$this- $file_error = NULL;
$this- $file_size = NULL;
$this- $file_tmp_name = NULL;
$this- $file_type = NULL;
$this- $totalsize = 0;
}

function show_execute_message($smfileerror,$smfilename,$smfiletype,$smfilesize){
if($smfileerror 0){
switch ($smfileerror){
case 1: $smfilemessage=' strong 文件超过服务器的约定大小！ /strong break;
case 2: $smfilemessage =' strong 文件超过指定的文件大小！ /strong break;
case 3: $smfilemessage=' strong 文件只上传了部分！ /strong break;
case 4: echo "$this- $file_name ".'文件上传失败！ br/ break;
}
self::__destruct();
}else{
$smfiletypeflag = array_search($smfiletype,$this- $file_type_array);

//进行真实格式验证
if($smfiletypeflag != false){
$file = fopen($this- $file_tmp_name, "rb");
$bin = fread(file, 10);
fclose($file);
$strInfo = @unpack("c10chars", $bin);
$typeCode = intval($strInfo['chars1'].$strInfo['chars2']);
$smfiletypeflag = array_search($typeCode, $this- $file_type_real_array);
if($smfiletypeflag == false){ //判断是否是png图片
$typeCode = intval($strInfo['chars2'].$strInfo['chars3'].$strInfo['chars4']);
$smfiletypeflag = array_search($typeCode, $this- $file_type_real_array);
if($smfiletypeflag == false){ //判断是否是jpg图片
$$typeCode = intval($strInfo['chars7'].$strInfo['chars8'].$strInfo['chars9'].$strInfo['chars10']);
$smfiletypeflag = array_search($typeCode, $this- $file_type_real_array);
}
}
}

if($smfiletypeflag == false){
$smfilemessage=' strong 文件类型不对，请核实！ /strong
self::__destruct();
}else{
$resflag = $$this- move_file($$this- $file_tmp_name,$this- $file_name);
if ($resflag == 1){
$smfilemessage = '文件上传成功！';
$this- totalsize += intval($smfilesize);
self::__destruct();
}else{
$smfilemessage = ' strong 文件上传失败！ /strong
self::__destruct();
}
}
}

$$smfilesizeformat = $this- size_BKM($smfilesize);
echo ' tr
td align="left" '.$smfilename.' /td
td align="center" '.$smfiletype.' /td
td align="center" '.$smfilesizeformat.' /td
td align="center" '.smfilemessage.' /td
/tr
}

function move_file($mvfiletmp,$mvfilename){ //移动文件
$mvfilenamearr = explode('.',basename($mvfilename));
$mvfilenamearr[0] = $this- rand_string();
$mvfilename = implode('.',$mvfilenamearr);

if (is_uploaded_file($mvfiletmp)){
$uploadfile = self::FILE_PATH."$mvfilename";
$result = move_uploaded_file($mvfiletmp,$uploadfile);
return $result;
}
}

function rand_string(){
$string = md5(uniqid(rand().microtime()));
return $string;
}

function size_BKM($size){ // B/KB/MB单位转换
if($size 1024)
{
$size_BKM = (string)$size . " B";
}
elseif($size (1024 * 1024))
{
$size_BKM = number_format((double)($size / 1024), 1) . " KB";
}else
{
$size_BKM = number_format((double)($size / (1024*1024)),1)." MB";
}
return $size_BKM;
}
}
希望本文所述对大家的php程序设计有所帮助。PHP教程

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