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。
Sr.No | 参数 & Description |
---|---|
1 |
link 它是mysqli_connect()或mysqli_init()返回的链接标识符 |
成功时返回TRUE,失败时返回FALSE。
链接:https://www.learnfk.comhttps://www.learnfk.com/php/php-function-mysqli-ping.html
来源:LearnFk无涯教程网
<?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($connection_mysql)){ echo "Connection is ok!"; }else{ echo "Error: ". mysqli_error($connection_mysql); } mysqli_close($connection_mysql); ?>
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