PHP Classes

BinPacker: Pack files without exceeding a given size limit

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binpacker 1.0.0GNU General Publi...Algorithms, PHP 5, Files and Folders


The purpose of this class is to copy or move the files to a set of directories, so that the total size of all files in each directory does not exceed a given size limit.

It can can be quite handy in situations where you need to transfer an huge amount of files, which would be a tedious job to perform manually.

This kind of problem is also known as bin packing. Current, this class only solves this problem partially.

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When it is necessary to backup a large number files to a type of storage media with a limited size, it may be necessary to use multiple media units to perform a complete backup process.

Since the size of each set of files put in each unit may not fit exactly the media size limit, to avoid splitting a file across multiple units, it may be necessary to redistribute the files to minimize the free space that would be wasted otherwise.

This class implements the bin packing algorithm to perform nearly optimal redistribution of the files that are being copied to target media directories.

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Bin Packer Class ================ Description ----------- Given a set of directories/files and a bin size, copy/move the files to a set of directories so that the total size of all files in each directory does not exceed the bin size. Can be quite handy in situations where you need to transfer HUGE amounts of files and are fed up with counting bytes and you just wanna drag, drop and burn. Something to remember (you may not notice but...) If 2 files are the same then only one is transferred. If you don't like this feature then copy,paste rename afterwards. Tested with PHP 5 on Linux and Windows. Disclaimer ---------- This Class does not solve the Bin Packing Problem. It just tries for the 22% ;) If anyone is interested in the algorithm then get in touch. Bed time reading: And finally - BACKUP YOUR DATA BEFORE USE ;) 2004-12-21

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