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:
<?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; } } ?>
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