PHP 中的 mysqli close函数

mysqli close - 语法

bool mysqli_close ([ resource $link_identifier=NULL ] )

用于关闭MySQL连接。

mysqli close - 返回值

成功时返回TRUE，失败时返回FALSE

mysqli close - 示例

<?php
   $connection=mysqli_connect("learnfk.com","use",pass","my_db");
   
   if (mysqli_connect_errno($connection)){
      echo "Failed to connect to MySQL: " . mysqli_connect_error();
   }
   
   mysqli_close($connection);
?>