PHP mysqli_thread_id() 函数

<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno($con))
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}

// Get thread id
$t_id=mysqli_thread_id($con);

// Kill connection
mysqli_kill($con,$t_id);
?>