mysqli_error(3) [php man page]

MYSQLI_ERROR(3) 							 1							   MYSQLI_ERROR(3)

mysqli::$error - Returns a string description of the last error

       Object oriented style

SYNOPSIS

       string$mysqli->error ()

DESCRIPTION

       Procedural style
       string mysqli_error (mysqli  $link)

	Returns the last error message for the most recent MySQLi function call that can succeed or fail.

PARAMETERS

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

RETURN VALUES

	A string that describes the error. An empty string if no error occurred.

EXAMPLES

       Example #1

	      $mysqli->error 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();
	      }

	      if (!$mysqli->query("SET a=1")) {
		  printf("Errormessage: %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();
	      }

	      if (!mysqli_query($link, "SET a=1")) {
		  printf("Errormessage: %s
", mysqli_error($link));
	      }

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

	      The above examples will output:

	      Errormessage: Unknown system variable 'a'

SEE ALSO

       mysqli_connect_errno(3), mysqli_connect_error(3), mysqli_errno(3), mysqli_sqlstate(3).

PHP Documentation Group 													   MYSQLI_ERROR(3)

MYSQLI_KILL(3)								 1							    MYSQLI_KILL(3)

mysqli::kill - Asks the server to kill a MySQL thread

       Object oriented style

SYNOPSIS

       bool mysqli::kill (int  $processid)

DESCRIPTION

       Procedural style
       bool mysqli_kill (mysqli  $link, int  $processid)

	This  function	is  used  to  ask the server to kill a MySQL thread specified by the $processid parameter. This value must be retrieved by
       calling the mysqli_thread_id(3) function.

	To stop a running query you should use the SQL command KILL QUERY processid.

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::kill 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();
	      }

	      /* determine our thread id */
	      $thread_id = $mysqli->thread_id;

	      /* Kill connection */
	      $mysqli->kill($thread_id);

	      /* This should produce an error */
	      if (!$mysqli->query("CREATE TABLE myCity LIKE City")) {
		  printf("Error: %s
", $mysqli->error);
		  exit;
	      }

	      /* 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();
	      }

	      /* determine our thread id */
	      $thread_id = mysqli_thread_id($link);

	      /* Kill connection */
	      mysqli_kill($link, $thread_id);

	      /* This should produce an error */
	      if (!mysqli_query($link, "CREATE TABLE myCity LIKE City")) {
		  printf("Error: %s
", mysqli_error($link));
		  exit;
	      }

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

	      The above examples will output:

	      Error: MySQL server has gone away

SEE ALSO

       mysqli_thread_id(3).

PHP Documentation Group 													    MYSQLI_KILL(3)