一个很好的学习例子，主要是ftp的实现，包括了多线程部分。-A very good example to study. It mainly talks about the implementation of ftp including the multi-process.

利用php和SQL Server构成一个FTP站内搜索引擎，这个例子既是一个搜索和分析数据的几好例子，从中大家更可以感受到SQL Server数据库海量数据存储和便捷检索的巨大魅力-Php and SQL Server to use an FTP site search engine, this example is a data search and analysis of a few good examples, from which we can feel the SQL Server d