从Php 连接mysql 有已下三种:
ext/mysql
ext/mysqli
PDO_MYSQL
All PHP MySQL extensions are part of the source code of PHP。
The MySQL native driver for PHP is an additional, alternative way to
connect from PHP 5.3 or newer to the MySQL Server 4.1 or newer. It is a
replacement for the libmysql, the MySQL Client Library。
As of PHP5.3 you can use ext/mysql, ext/mysqli and PDO_MYSQL either together with libmysql as you did in the past or with mysqlnd.
If you are compiling PHP yourself, please use the configure options
--with-mysql=mysqlnd, --with-mysqli=mysqlnd and --with-pdo-mysql=mysqlnd
to compile PHP with mysqlnd support.
The MySQL native driver for PHP requires PHP 5.3 or PHP 6。
以上的意思就是mysqlnd 将会取代libmysql.
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