array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'mysqli.get-host-info.php', 1 => 'mysqli::$host_info', 2 => '返回表述使用的连接类型的字符串', ), 'up' => array ( 0 => 'class.mysqli.php', 1 => 'mysqli', ), 'prev' => array ( 0 => 'mysqli.get-connection-stats.php', 1 => 'mysqli::get_connection_stats', ), 'next' => array ( 0 => 'mysqli.get-proto-info.php', 1 => 'mysqli::$protocol_version', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'zh', 'path' => 'reference/mysqli/mysqli/get-host-info.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

mysqli::$host_info

mysqli_get_host_info

(PHP 5, PHP 7, PHP 8)

mysqli::$host_info -- mysqli_get_host_info — 返回表述使用的连接类型的字符串

说明

面向对象风格

string $mysqli->host_info;

过程化风格

mysqli_get_host_info(mysqli $mysql): string

返回由 mysql 参数表示连接的字符串描述（包括服务器主机名）。

参数

mysql

仅以过程化样式：由 mysqli_connect() 或 mysqli_init() 返回的 mysqli 对象。

返回值

表示服务器主机名和连接类型的字符串。

示例

示例 #1 $mysqli->host_info 示例

面向对象风格

<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");

/* print host information */
printf("Host info: %s\n", $mysqli->host_info);

过程化风格

<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$link = mysqli_connect("localhost", "my_user", "my_password", "world");

/* print host information */
printf("Host info: %s\n", mysqli_get_host_info($link));

以上示例会输出：

Host info: Localhost via UNIX socket

参见