PHP文件系统基本操作类

bsp;                   continue;
                    } elseif ($k=="\""&&!$in_sq&&!$in_bc&&!$in_lc) $in_dq = !$in_dq; // 双引号字符串开始、结束
                    elseif ($k=="''"&&!$in_dq&&!$in_bc&&!$in_lc) $in_sq = !$in_sq; // 单引号字符串开始、结束
                    if ($in_lc||$in_bc) continue; // 在注释中，跳过
                    $tbuffer .= $fbuffer[$i];
                }
                $fbuffer = substr($fbuffer, $i); // 抛弃读取过的部分
                unset($i, $j, $k);
                if (!$fstats) $fbuffer .= fread($fh, $this->buffer_size);
                if ($fstats||strlen($tbuffer)>=$this->buffer_size) { // 写入合法数据到临时文件
                    if (!fwrite($th,$tbuffer)) { // 写入失败，空间不足
                        fclose($th);
                        flock($fh, LOCK_UN);
                        fclose($fh);
                        unset($th, $fh, $in_dq, $in_sq, $in_lc, $in_bc, $i, $j, $k);
                        return $this->error_occur(0x000D, "");
                    }
                    $tbuffer = "";