嗨，有人可以帮助我解决这个问题。
这是我的连接字符串：
<?php
#FileName = "Connection_php_mysql.htm"
#Type = "MYSQL"
#HTTP = "true"
$hostname_Main_DB = "localhost";
$database_Main_DB = "mydb";
$username_Main_DB = "root";
$password_Main_DB = "";
$con = new mysqli_connect($hostname_Main_DB,$username_Main_DB. $password_Main_DB, $database_Main_DB) or die ( "Failed to connect to MySQL: " . mysqli_connect_errno()); $db=mysqli_select_db($database_Main_DB,$con) or die( "Failed to connect to MySQL: " . mysqli_connect_errno());
?>
我已经安装了wamp服务器并启用了mysqli扩展。
希望你能帮助我解决这个问题，
Tnx， Yotam
$con = mysqli_connect(..);
删除新关键字。
代码应该是
<?php
#FileName = "Connection_php_mysql.htm"
#Type = "MYSQL"
#HTTP = "true"
$hostname_Main_DB = "localhost";
$database_Main_DB = "mydb";
$username_Main_DB = "root";
$password_Main_DB = "";
$con = mysqli_connect($hostname_Main_DB,$username_Main_DB,$password_Main_DB, $database_Main_DB) or die ( "Failed to connect to MySQL: " . mysqli_connect_errno());
$db=mysqli_select_db($database_Main_DB,$con) or die( "Failed to connect to MySQL: ".mysqli_connect_errno());
?>
您应该删除"新"。有关更多信息，请阅读此内容
编辑：-
此外，您在两个应该,变量之间添加了.
$username_Main_DB. $password_Main_DB将其替换为$username_Main_DB,$password_Main_DB