113 lines
2.4 KiB
PHP
113 lines
2.4 KiB
PHP
<?php
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/**
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* Object caching using PHP arrays.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Cache
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*/
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/**
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* This is a test of the interface, mainly. It stores things in an associative
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* array, which is not going to persist between program runs.
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*
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* @ingroup Cache
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*/
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class HashBagOStuff extends BagOStuff {
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/** @var array */
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protected $bag;
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function __construct() {
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$this->bag = array();
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}
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/**
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* @param string $key
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* @return bool
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*/
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protected function expire( $key ) {
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$et = $this->bag[$key][1];
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if ( ( $et == 0 ) || ( $et > time() ) ) {
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return false;
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}
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$this->delete( $key );
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return true;
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}
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/**
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* @param string $key
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* @param mixed $casToken [optional]
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* @return bool|mixed
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*/
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function get( $key, &$casToken = null ) {
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if ( !isset( $this->bag[$key] ) ) {
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return false;
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}
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if ( $this->expire( $key ) ) {
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return false;
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}
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$casToken = serialize( $this->bag[$key][0] );
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return $this->bag[$key][0];
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}
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/**
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* @param string $key
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* @param mixed $value
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* @param int $exptime
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* @return bool
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*/
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function set( $key, $value, $exptime = 0 ) {
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$this->bag[$key] = array( $value, $this->convertExpiry( $exptime ) );
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return true;
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}
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/**
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* @param mixed $casToken
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* @param string $key
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* @param mixed $value
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* @param int $exptime
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* @return bool
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*/
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function cas( $casToken, $key, $value, $exptime = 0 ) {
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if ( serialize( $this->get( $key ) ) === $casToken ) {
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return $this->set( $key, $value, $exptime );
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}
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return false;
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}
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/**
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* @param string $key
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* @param int $time
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* @return bool
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*/
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function delete( $key, $time = 0 ) {
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if ( !isset( $this->bag[$key] ) ) {
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return false;
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}
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unset( $this->bag[$key] );
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return true;
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}
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}
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