PHP mysqli ping() Function

Example - Object Oriented style

Ping a server connection:

<?php
$mysqli = new mysqli("localhost","my_user","my_password","my_db");

// Check connection
if ($mysqli -> connect_errno) {
echo "Failed to connect to MySQL: " . $mysqli -> connect_error;
exit();
}

// Check if server is alive
if ($mysqli -> ping()) {
echo "Connection is ok!";
} else {
echo "Error: ". $mysqli -> error;
}

$mysqli -> close();
?>

Look at example of procedural style at the bottom.

Definition and Usage

The ping() / mysqli_ping() function pings a server connection, to check if the server is alive. It also tries to reconnect - if the connection has gone down.

Syntax

Object oriented style:

$mysqli -> ping()

Procedural style:

mysqli_ping(connection)

Parameter Values

Parameter	Description
connection	Required. Specifies the MySQL connection to use

Technical Details

Return Value:	TRUE on success. FALSE on failure
PHP Version:	5+

Example - Procedural style

Ping a server connection:

<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");

// Check connection
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
exit();
}

// Check if server is alive
if (mysqli_ping($con)) {
echo "Connection is ok!";
} else {
echo "Error: ". mysqli_error($con);
}

mysqli_close($con);
?>

❮ PHP MySQLi Reference