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Hash.php
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Hash.php
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<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*/
namespace Cdb\Reader;
use Cdb\Reader;
/**
* Hash implements the CdbReader interface based on an associative
* PHP array (a.k.a "hash").
*/
class Hash extends Reader {
/** @var string[] */
private $data;
/**
* A queue of keys to return from nextkey(), initialized by firstkey();
*
* @var string[]|null
*/
private $keys = null;
/**
* Create the object and open the file
*
* @param string[] $data An associative array
*/
public function __construct( array $data ) {
$this->data = $data;
}
/**
* Close the file. Optional, you can just let the variable go out of scope.
*/
public function close(): void {
$this->data = [];
$this->keys = null;
}
/**
* Get a value with a given key. Only string values are supported.
*
* @param string|int $key
* @return string|false The value associated with $key, or false if $key is not known.
*/
public function get( $key ) {
return $this->data[ $key ] ?? false;
}
/**
* Check whether key exists
*
* @param string|int $key
* @return bool
*/
public function exists( $key ): bool {
return isset( $this->data[ $key ] );
}
/**
* Fetch first key
*
* @return string|false
*/
public function firstkey() {
$this->keys = array_keys( $this->data );
return $this->nextkey();
}
/**
* Fetch next key
*
* @return string|false
*/
public function nextkey() {
if ( $this->keys === null ) {
return $this->firstkey();
}
return $this->keys ? array_shift( $this->keys ) : false;
}
}

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Mime Type
text/x-php
Expires
Wed, Aug 19, 03:44 (1 w, 2 d ago)
Storage Engine
local-disk
Storage Format
Raw Data
Storage Handle
a5/fa/b0db487a954c9f493a636d594ed6
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Hash.php (2 KB)

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