php连接mysql

php7已经全面放弃mysql了，改用了mysqli

报错一【Fatal error: Class ‘mysqli’ not found in xxx……】

1在php.ini里面去掉【extension=php_mysqli.dll】前面的";",

2 extension_dir = "D:/php732/ext" 这个地方最好用绝对路径

然后重启服务器。

报错二 not found mysql_connect()

不再支持mysql_connect(),使用new mysqli();

报错三    Warning: mysqli::__construct(): (HY000/1045): Access denied for user 'root'@'localhost' (using password: YES) 

更改root密码

$mysqli = new mysqli("localhost", "root", "password");