环境win7+iis
按照网上的说法，我在php.ini里打开extension=php_pdo_sqlite.dll和extension=php_sqlite3.dll，重启IIS
在PHP里写$db=sqlite_open ("test.db");总是提示Call to undefined function sqlite_open()为什么呢？
回复讨论(解决方案)
php_sqlite3.只提供了 sqlite3 类，没有提供分立函数
既然你也打开了 php_pdo_sqlite，那么使用 pdo 操作 SQLite 就可以了
php_sqlite3.只提供了 sqlite3 类，没有提供分立函数
既然你也打开了 php_pdo_sqlite，那么使用 pdo 操作 SQLite 就可以了
终于弄明白了，我网上看的都是sqlite2及以前版本的，官网上的手册特意把sqlite3和sqlite分开说
谢谢，不过我还是不太明白PDO到底是个啥
PDO是PHP 5新加入的一个重大功能，因为在PHP 5以前的php4/php3都是一堆的数据库扩展来跟各个数据库的连接和处理，什么 php_mysql.dll、php_pgsql.dll、php_mssql.dll、php_sqlite.dll等等扩展来连接MySQL、PostgreSQL、MS SQL Server、SQLite，同样的，我们必须借助 ADOdb、PEAR::DB、PHPlib::DB之类的数据库抽象类来帮助我们，无比烦琐和低效，毕竟，php代码的效率怎么能够我们直接用C/C++写的扩展斜率高捏？所以嘛，PDO的出现是必然的
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