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ExternalStoreMemory.php
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ExternalStoreMemory.php
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<?php
/**
* @license GPL-2.0-or-later
* @file
*/
/**
* External storage in PHP process memory for testing.
*
* In this system, each store "location" is separate PHP array.
* URLs are of the form "memory://location/id". The id/value pairs
* at each location are segregated by DB domain ID.
*
* @see ExternalStoreAccess
* @ingroup ExternalStorage
* @since 1.33
*/
class ExternalStoreMemory extends ExternalStoreMedium {
/** @var array[] Map of (location => DB domain => id => value) */
private static $data = [];
/** @var int */
private static $nextId = 0;
/** @inheritDoc */
public function fetchFromURL( $url ) {
[ $location, $id ] = self::getURLComponents( $url );
if ( $id === null ) {
throw new UnexpectedValueException( "Missing ID in URL component." );
}
return self::$data[$location][$this->dbDomain][$id] ?? false;
}
/** @inheritDoc */
public function batchFetchFromURLs( array $urls ) {
$blobs = [];
foreach ( $urls as $url ) {
$blob = $this->fetchFromURL( $url );
if ( $blob !== false ) {
$blobs[$url] = $blob;
}
}
return $blobs;
}
/** @inheritDoc */
public function store( $location, $data ) {
$index = ++self::$nextId;
self::$data[$location][$this->dbDomain][$index] = $data;
return "memory://$location/$index";
}
/**
* Remove all data from memory for this domain
*/
public function clear() {
foreach ( self::$data as &$dataForLocation ) {
unset( $dataForLocation[$this->dbDomain] );
}
unset( $dataForLocation );
self::$data = array_filter( self::$data, 'count' );
self::$nextId = 0;
}
/**
* @param string $url
* @return array (location, ID or null)
*/
private function getURLComponents( $url ) {
// @phan-suppress-next-line PhanSuspiciousBinaryAddLists It's intentional
[ $proto, $path ] = explode( '://', $url, 2 ) + [ null, null ];
if ( $proto !== 'memory' ) {
throw new UnexpectedValueException( "Got URL of protocol '$proto', not 'memory'." );
} elseif ( $path === null ) {
throw new UnexpectedValueException( "URL is missing path component." );
}
$parts = explode( '/', $path );
if ( count( $parts ) > 2 ) {
throw new UnexpectedValueException( "Too components in URL '$path'." );
}
return [ $parts[0], $parts[1] ?? null ];
}
}

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Mime Type
text/x-php
Expires
Oct 4 2026, 09:31 (5 w, 2 d ago)
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local-disk
Storage Format
Raw Data
Storage Handle
aa/58/068eaa09d1f79e21da57baa90d3d
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ExternalStoreMemory.php (2 KB)

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