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