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MysqlndUhConnection::close

Contents

(PECL mysqlnd-uh >= 1.0.0-alpha)

MysqlndUhConnection::close — Closes a previously opened database connection

Description

public MysqlndUhConnection::close ( mysqlnd_connection $connection , int $close_type ) : bool

Closes a previously opened database connection.

Note:

Failing to call the parent implementation may cause memory leaks or crash PHP. This is not considered a bug. Please, keep in mind that the mysqlnd library functions have never been designed to be exposed to the user space.

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Parameters

connection

The connection to be closed. Do not modify!

close_type

Why the connection is to be closed. The value of close_type is one of MYSQLND_UH_MYSQLND_CLOSE_EXPLICIT, MYSQLND_UH_MYSQLND_CLOSE_IMPLICIT, MYSQLND_UH_MYSQLND_CLOSE_DISCONNECTED or MYSQLND_UH_MYSQLND_CLOSE_LAST. The latter should never be seen, unless the default behaviour of the mysqlnd library has been changed by a plugin.

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Return Values

Returns TRUE on success. Otherwise, returns FALSE

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Examples

Example #1 MysqlndUhConnection::close() example

<?php
function close_type_to_string($close_type) {
 $mapping = array(
  MYSQLND_UH_MYSQLND_CLOSE_DISCONNECTED => "MYSQLND_UH_MYSQLND_CLOSE_DISCONNECTED",
  MYSQLND_UH_MYSQLND_CLOSE_EXPLICIT => "MYSQLND_UH_MYSQLND_CLOSE_EXPLICIT",
  MYSQLND_UH_MYSQLND_CLOSE_IMPLICIT => "MYSQLND_UH_MYSQLND_CLOSE_IMPLICIT",
  MYSQLND_UH_MYSQLND_CLOSE_LAST => "MYSQLND_UH_MYSQLND_CLOSE_IMPLICIT"
 );
 return (isset($mapping[$close_type])) ? $mapping[$close_type] : 'unknown';
}

class proxy extends MysqlndUhConnection {
  public function close($res, $close_type) {
   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));
   printf("close_type = %s\n", close_type_to_string($close_type));
   /* WARNING: you must call the parent */
   $ret = parent::close($res, $close_type);
   printf("%s returns %s\n", __METHOD__, var_export($ret, true));
   return $ret;
 }
}
mysqlnd_uh_set_connection_proxy(new proxy());

$mysqli = new mysqli("localhost", "root", "", "test");
$mysqli->close();
?>

The above example will output:

proxy::close(array (
  0 => NULL,
  1 => 0,
))
close_type = MYSQLND_UH_MYSQLND_CLOSE_EXPLICIT
proxy::close returns true

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See Also

Find a PHP function

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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-mysqlnduhconnection.close.html

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References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

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