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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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本文标题: PHP获取一个连接的信息
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