php小编草莓为您介绍如何使用PHP获取一个连接的信息。在Web开发中,获取连接的信息是一项常见的操作,可以帮助我们了解连接的状态、IP地址、浏览器信息等。通过PHP的内置函数和变量,我们可以轻松地实现这一功能。接下来,我们将详细介绍如何通过PHP获取连接的信息,帮助您更好地掌握这一技巧。
获取 PHP 中连接的信息
在 php 中,可以通过以下方法获取连接信息:
1. mysqli_get_connection_stats():
此函数返回一个包含以下信息的数组:
示例:
$Mysqli = new mysqli("localhost", "user", "passWord", "database"); $stats = $mysqli->get_connection_stats(); echo "Total connect time: " . $stats["total_connect_time"] . " seconds "; echo "Total connect attempts: " . $stats["total_connect_attempts"] . " "; echo "Average connect time: " . $stats["avg_connect_time"] . " seconds "; echo "Maximum connect time: " . $stats["max_connect_time"] . " seconds "; echo "Total received bytes: " . $stats["total_recv_bytes"] . " bytes "; echo "Total sent bytes: " . $stats["total_send_bytes"] . " bytes ";
2. mysqli_get_connection_info():
此函数返回一个包含以下信息的字符串:
示例:
$mysqli = new mysqli("localhost", "user", "password", "database"); $info = $mysqli->get_connection_info(); echo "Protocol: " . $info . " "; echo "Server: " . $info . " "; echo "Server version: " . $info . " "; echo "Threaded: " . ($info ? "Yes" : "No") . " "; echo "SSL: " . ($info ? "Yes" : "No") . " "; echo "Persistent: " . ($info ? "Yes" : "No") . " "; echo "Character set: " . $info . " ";
3. PDO::getAttribute():
对于使用 PDO 连接的数据库,可以使用 PDO::getAttribute()
函数获取连接信息:
示例:
$pdo = new PDO("mysql:host=localhost;dbname=database", "user", "password"); $serverInfo = $pdo->getAttribute(PDO::ATTR_SERVER_INFO); $serverVersion = $pdo->getAttribute(PDO::ATTR_SERVER_VERSION); $persistent = $pdo->getAttribute(PDO::ATTR_PERSISTENT); echo "Server info: " . $serverInfo . " "; echo "Server version: " . $serverVersion . " "; echo "Persistent: " . ($persistent ? "Yes" : "No") . " ";
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