php实现多图片上传类实例，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。
php多图片上传类完整功能代码如下：
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; self :: 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){ $smfilemessage = '文件上传成功！'; self :: totalsize += intval($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
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。
http://www.bkjia.com/phpjc/851354.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/851354.htmltecharticlephp实现多图片上传类实例， 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...