一个PHP多图片文件上传类
一个实用的PHP多图片文件上传类，支持gif、jpg、jpeg、pjpeg、png格式的多图片上传功能，类中可限制图片类型、上传图片大小、设置上传目录、一些提交判断等功能。其实本类不局限于图片的上传，也可以上传TXT/RAR等文件类型，只是要修饰一下代码，相信你能搞定，下面帖出具体代码：
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<?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='<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){$smfilemessage = '文件上传成功！';self::totalsize +=intval($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;}}?> |
可将代码复制到PHP文件中，保存文件名为：more_upload_file.class.php，使用时include。
