@H_403_0@本文所述为一个实用的PHP多图片文件上传类，其支持gif、jpg、jpeg、pjpeg、png格式的多图片上传功能，类中还可限制图片类型、上传图片的大小、设置上传目录、一些提交判断等功能。此外该类并不局限于图片的上传，也可以上传TXT/RAR等文件类型，只是需要对代码进行一下修改，感兴趣的读者可以自己尝试一下。

@H_403_0@PHP多图片上传类完整功能代码如下：

<div class="jb51code">
<pre class="brush:PHP;">
<?php
class more_file_upload{
const FILE_PATH = '/uploadfile/'; //默认文件上传的目录，请自行修改
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;
static 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;
self :: totalsize = 0;
}
function show_execute_message(smfileerror,smfilename,smfiletype,smfilesize){
if(smfileerror > 0){
switch (smfileerror){
case 1: smfilemessage = '

文件超过服务器的约定大小！

';
break;
case 2: smfilemessage = '

文件超过指定的文件大小！

';
break;
case 3: smfilemessage = '

文件只上传了部分！

';
break;
case 4: echo "this->file_name " . '文件上传失败！
';
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 = '

文件类型不对，请核实！

';
self :: destruct();
}else{
$resflag = $this -> move_file($this -> file_tmp_name,this -> file_name);
if (resflag == 1){
$smfilemessage = '文件上传成功！';
self :: totalsize += intval($smfilesize);
self :: destruct();
}else{
$smfilemessage = '

文件上传失败！

';
self :: destruct();
}
}
}
$smfilesizeformat = $this -> size_BKM(smfilesize);
echo '<tr>

' . smfilename . '' . smfiletype . '' . smfilesizeformat . '' . smfilemessage . ' 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; } } ?>