This article explains in detail three ways for PHP to connect to MySQL database

PHP And MySQL There are three kinds of connections API Interface , Namely ：PHP Of MySQL Expand 、PHP Of mysqli Expand 、PHP Data objects (PDO).

1.MySQL Expand

PHP Of MySQL Extensions are allowed by design and development PHP Application and MySQL Early extensions of database interaction .MySQL The extension provides a process oriented interface , Because it does not support post MySQL Some features provided by the server . And too old , It's not safe , So it has been later mysqli Complete substitution ;
Use as follows

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28	// since PHP 5.5.0 It has been abandoned . $mysql_conf = array( 'host' => '127.0.0.1:3306', 'db'

author ：shengyin714959

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