PHP如何实现多文件上传类

这篇文章主要介绍了PHP如何实现多文件上传类，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。

具体如下：

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='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($$this->$file_tmp_name,$this->$file_name);if ($resflag == 1){$smfilemessage = '文件上传成功！';$this->totalsize +=  intval($smfilesize);self::__destruct();}else{$smfilemessage = '文件上传失败！';self::__destruct();}}} $$smfilesizeformat = $this->size_BKM($smfilesize);echo ''.$smfilename.''.$smfiletype.''.$smfilesizeformat.''.smfilemessage.'';} function move_file($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;}}?>

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