algb12/graph-ds
A fast implementation of the graph data-structure in PHP
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bmdevel/php-index
This library provides an API to perform binary search operations on a sorted index. The index can be a XML document, a CSV document, or an arbitrary text file where the key has a fixed position. You can easily implement your own index. This API comes handy on any sorted data structure where realtime
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ballen/collection
A Collection library which provides OOP replacement for the traditional array data structure.
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concretecms/doctrine-xml
Define database structure via XML using Doctrine data types
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