php连接mysql的方法是什么

mysqli_connect(host,username,password,dbname,port,socket);

<?php
	$mysql_server_name = &#39;数据库连接地址&#39;;
	$mysql_username = &#39;数据库用户名&#39;;
	$mysql_password = &#39;数据库管理密码&#39;;
	$mysql_database = &#39;数据库名称&#39;;
	$conn=mysqli_connect($mysql_server_name,$mysql_username,$mysql_password,$mysql_database); //连接数据库
	//连接数据库错误提示
	if (mysqli_connect_errno($conn)) { die("连接 MySQL 失败: " . mysqli_connect_error()); }
	mysqli_query($conn,"set names utf8"); //数据库编码格式
	// mysqli_set_charset($conn,"utf8");//设置默认客户端字符集。
	// mysqli_select_db($conn,$mysql_database); //更改连接的默认数据库
	//查询代码
	$sql = “select * from table”;
	$query = mysqli_query($conn,$sql);
	while($row = mysqli_fetch_array($query)){
	    echo $row[&#39;title&#39;];
	}
	// 释放结果集+关闭MySQL数据库连接
	mysqli_free_result($result);
	mysqli_close($conn); 
?>