PHP Preemptive Cache: Cache a limited amount of data records in memory

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Not enough user ratings				Total: 281		All time: 7,552 This week: 158

Version		License		PHP version		Categories
`preemptive-cache` 1.1		MIT/X Consortium ...		5.3		PHP 5, Cache

Description Author

This class can cache a limited amount of data records in memory.

It takes a callable function as parameter that will be used to retrieve data records to be cached.

When the application needs to fetch a data record, the class will call the given callable function if the record with a given id is not yet cached in memory in class array.

The class will maintain up to a given limit of cached data records in memory.

Innovation Award

September 2015
Number 2

Some algorithms need to access information records multiple times during the execution of the algorithm.

For this type of algorithm it more efficient to keep the most frequently accessed records of information memory.

This class implements a caching method that does that. It retrieves data records into a cache array up to a limited amount of records so it avoids using too much memory.

The use of configurable callback function allows it to be used to retrieve cached records from virtually any type of data source.

Manuel Lemos

Joseluis Laso

Performance

Level

Name:	Joseluis Laso `<contact>`
Classes:	16 packages by Joseluis Laso
Country:	Spain

Level 4

Innovation award

Nominee: 6x

Winner: 2x

Details

PreEmptiveCache

A little class to help improve our scripts that access to a large quantity of data.

A class to document the article I published on PHPClasses.

Once the repo is in your drive run `composer dumpautoload` in order to generate the appropriate autoload files.

Files

File	Role	Description
`example` (3 files, 1 directory)
`src` (3 files, 1 directory)
`vendor` (1 file, 1 directory)
`composer.json`	Data	Auxiliary data
`LICENSE`	Lic.	License text
`README.md`	Doc.	Documentation

Files

example

File	Role	Description
`sample-db` (2 files)
`sample-analysis.php`	Aux.	Sample analysys script
`sample-optimized.php`	Example	Sample optimized script
`sample-unoptimized.php`	Aux.	Sample unoptimized script

Files

example

sample-db

File	Role	Description
`create-sample-data.php`	Aux.	Example script
`creation.sql`	Data	Auxiliary data

Files

src

File	Role	Description
`words` (1 file)
`PreEmptiveCache.php`	Class	Class source
`ProgressBar.php`	Class	Class source
`RandomTokenizer.php`	Class	Class source

Files

src

words

File	Role	Description
`words.txt`	Data	Auxiliary data

Files

vendor

File	Role	Description
`composer` (5 files)
`autoload.php`	Aux.	Auxiliary script

Files

vendor

composer

File	Role	Description
`autoload_classmap.php`	Aux.	Auxiliary script
`autoload_namespaces.php`	Aux.	Auxiliary script
`autoload_psr4.php`	Aux.	Auxiliary script
`autoload_real.php`	Aux.	Auxiliary script
`ClassLoader.php`	Aux.	Auxiliary script