mysqli_ping(3) [php man page]

MYSQLI_PING(3)								 1							    MYSQLI_PING(3)

mysqli::ping - Pings a server connection, or tries to reconnect if the connection has gone down

       Object oriented style

SYNOPSIS

       bool mysqli::ping (void	)

DESCRIPTION

       Procedural style
       bool mysqli_ping (mysqli  $link)

	Checks	whether  the  connection to the server is working. If it has gone down, and global option mysqli.reconnect is enabled an automatic
       reconnection is attempted.

	This function can be used by clients that remain idle for a long while, to check whether the server has closed the connection  and  recon-
       nect if necessary.

PARAMETERS

	      o $
		link -Procedural style only: A link identifier returned by mysqli_connect(3) or mysqli_init(3)

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      mysqli::ping example

	      Object oriented style

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

	      /* check connection */
	      if ($mysqli->connect_errno) {
		  printf("Connect failed: %s
", $mysqli->connect_error);
		  exit();
	      }

	      /* check if server is alive */
	      if ($mysqli->ping()) {
		  printf ("Our connection is ok!
");
	      } else {
		  printf ("Error: %s
", $mysqli->error);
	      }

	      /* close connection */
	      $mysqli->close();
	      ?>

	      Procedural style

	      <?php
	      $link = mysqli_connect("localhost", "my_user", "my_password", "world");

	      /* check connection */
	      if (mysqli_connect_errno()) {
		  printf("Connect failed: %s
", mysqli_connect_error());
		  exit();
	      }

	      /* check if server is alive */
	      if (mysqli_ping($link)) {
		  printf ("Our connection is ok!
");
	      } else {
		  printf ("Error: %s
", mysqli_error($link));
	      }

	      /* close connection */
	      mysqli_close($link);
	      ?>

	      The above examples will output:

	      Our connection is ok!

PHP Documentation Group 													    MYSQLI_PING(3)

Check Out this Related Man Page

MYSQLI_GET_SERVER_INFO(3)						 1						 MYSQLI_GET_SERVER_INFO(3)

mysqli::$server_info - Returns the version of the MySQL server

       Object oriented style

SYNOPSIS

       string$mysqli->server_info ()

DESCRIPTION

       Procedural style
       string mysqli_get_server_info (mysqli  $link)

	Returns a string representing the version of the MySQL server that the MySQLi extension is connected to.

PARAMETERS

	      o $
		link -Procedural style only: A link identifier returned by mysqli_connect(3) or mysqli_init(3)

RETURN VALUES

	A character string representing the server version.

EXAMPLES

       Example #1

	      $mysqli->server_info example

	      Object oriented style

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

	      /* check connection */
	      if (mysqli_connect_errno()) {
		  printf("Connect failed: %s
", mysqli_connect_error());
		  exit();
	      }

	      /* print server version */
	      printf("Server version: %s
", $mysqli->server_info);

	      /* close connection */
	      $mysqli->close();
	      ?>

	      Procedural style

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

	      /* check connection */
	      if (mysqli_connect_errno()) {
		  printf("Connect failed: %s
", mysqli_connect_error());
		  exit();
	      }

	      /* print server version */
	      printf("Server version: %s
", mysqli_get_server_info($link));

	      /* close connection */
	      mysqli_close($link);
	      ?>

	      The above examples will output:

	      Server version: 4.1.2-alpha-debug

SEE ALSO

       mysqli_get_client_info(3), mysqli_get_client_version(3), mysqli_get_server_version(3).

PHP Documentation Group 												 MYSQLI_GET_SERVER_INFO(3)

Linux and UNIX Man Pages

mysqli_ping(3) [php man page]

Check Out this Related Man Page