无涯教程-PHP - mysqli ping函数

mysqli ping - 语法

bool mysqli_ping ( mysqli $link );

它用于ping服务器连接，并在连接丢失时重新连接到服务器。

mysqli ping - 返回值

成功时返回TRUE，失败时返回FALSE。

mysqli ping - 示例

<?php
   $connection_mysql=mysqli_connect("localhost","user","password","db");
if (mysqli_connect_errno($connection_mysql)){
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
if (mysqli_ping(connection_mysql</span><span class="pun">)){</span><span class="pln">
      echo </span><span class="str">"Connection is ok!"</span><span class="pun">;</span><span class="pln">
   </span><span class="pun">}</span><span class="kwd">else</span><span class="pun">{</span><span class="pln">
      echo </span><span class="str">"Error: "</span><span class="pun">.</span><span class="pln"> mysqli_error</span><span class="pun">(</span><span class="pln">connection_mysql);
}
mysqli_close($connection_mysql);
?>

参考链接

www.learnfk.com/php/php-fun…