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。
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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 = '
'; 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 = '' . 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;
}
}
?>
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 '读者可以将上述代码复制到PHP文件中，并保存文件名为：more_upload_file.class.PHP，在使用时include该文件即可。
