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<?php
/**
* +----------------------------------------------------------------------+
* | Copyright (c) 1997-2023 The PHP Group |
* +----------------------------------------------------------------------+
* | This source file is subject to version 3.01 of the PHP license, |
* | that is bundled with this package in the file LICENSE, and is |
* | available through the world-wide-web at the following url: |
* | https://www.php.net/license/3_01.txt. |
* | If you did not receive a copy of the PHP license and are unable to |
* | obtain it through the world-wide-web, please send a note to |
* | license@php.net, so we can mail you a copy immediately. |
* +----------------------------------------------------------------------+
* | Authors: André L F S Bacci <ae php.net> |
* +----------------------------------------------------------------------+
* | Description: Class to handle data persistence. |
* +----------------------------------------------------------------------+
*/
require_once __DIR__ . '/all.php';
class CacheFile
{
const CACHE_DIR = __DIR__ . '/../.cache';
private string $filename;
function __construct( string $file )
{
$this->filename = CacheFile::prepareFilename( $file , true );
}
public function load( mixed $init = null )
{
if ( file_exists( $this->filename ) == false )
return $init;
$data = file_get_contents( $this->filename );
return unserialize( gzdecode( $data ) );
}
public function save( $data )
{
$contents = gzencode( serialize( $data ) );
file_put_contents( $this->filename , $contents );
}
public static function prepareFilename( string $file , bool $createCacheDirs = false )
{
if ( str_starts_with( $file , '/' ) )
return $file;
$outPath = CacheUtil::CACHE_DIR . '/' . dirname( $file );
$outFile = rtrim( $outPath , '/' ) . '/' . $file;
if ( $createCacheDirs && file_exists( $outPath ) == false )
mkdir( $outPath , 0777 , true );
return $outFile;
}
}
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