PHP连接不了数据库
<?php
$conn=mysqli_connect("127.0.0.1","root","root","PJ")or die("连接数据库失败！用户名或密码错误！");
mysql_select_db("PJ","$conn");
mysql_query($conn,"CREATE TEMPORMARY TABLE 'MESSAGE'");
?>
报错Warning: mysqli_connect(): (HY000/2002):
<?php
$conn=mysqli_connect("127.0.0.1","root","root","PJ")or die("连接数据库失败！用户名或密码错误！");
mysql_select_db("PJ","$conn");
mysql_query($conn,"CREATE TEMPORMARY TABLE 'MESSAGE'");
?>
报错Warning: mysqli_connect(): (HY000/2002):
天蓬老师2018-12-20 20:59:52
你究竟用的是mysql , 还是mysqli, 这是二个不同的东西, mysqli 是 mysqli的功能增强版
你连接用的是 : mysqli_connect() , 后面的选择数据库,用的是: mysql_select_db(), 应该也要用: mysqli_select_db()
