MysqlndUhConnection::close

(PECL mysqlnd-uh >= 1.0.0-alpha)

MysqlndUhConnection::closeCloses a previously opened database connection

Descrizione

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

Closes a previously opened database connection.

Nota:

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.

Elenco dei parametri

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.

Valori restituiti

Returns TRUE on success. Otherwise, returns FALSE

Esempi

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($rettrue));
   return 
$ret;
 }
}
mysqlnd_uh_set_connection_proxy(new proxy());

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

Il precedente esempio visualizzerĂ :

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

Vedere anche:

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