PHP多文件上传类实例

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：

<?php 

/*

PHP多文件上传类

修改：Linvo 2008-2-15

*/

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。