Top rated classes: Algorithms

	1. Polygon

Supplied by: Brenor Brophy <e-mail contact>

Perform geometric operations on polygons

	2. gPoint

Supplied by: Brenor Brophy <e-mail contact>

Convert geographic coordinates between projections

	3. Sun

Supplied by: Nesa Simon David <e-mail contact>

Calculate the sunrise and sunset time of any place

	4. ELO Calculator

Supplied by: Bogdan Zarchievici <e-mail contact>

Calculates the relative skill levels of players

	5. Celko Visitation Model

Supplied by: Khaled Al-Shamaa <e-mail contact>

Manipulate hierarchic records in a MySQL database

	6. ArAutoSummarize

Supplied by: Khaled Al-Shamaa <e-mail contact>

Extract summary phrases from an Arabic text

	7. SortMultiArray

Supplied by: Sunny Rajpal <e-mail contact>

Sort a multi-dimmensional array by a column

	8. MPTTA for PHP and MySQL

Supplied by: Andrea Giammarchi <e-mail contact>

Manage trees of data stored in a MySQL database

	9. DoubleMetaPhone

Supplied by: Steve Woodbridge <e-mail contact>

An improved "sounds like" algorithm.

	10. HTML dbtree

Supplied by: jonathan gotti <e-mail contact>

Manipulate hierarchical data stores in database

	11. Graph Coloring

Supplied by: MA Razzaque Rupom <e-mail contact>

Assign colors to graph points from a vertex list

	12. Moon Phase

Supplied by: kumar mcmillan <e-mail contact>

Calculates the phase of the Moon

	13. phpOCR

Supplied by: Andrey Kucherenko <e-mail contact>

Recognize text & objects in graphical images

	14. String Similarity

Supplied by: Marius Ciotlos <e-mail contact>

Calculate the similarity of two text strings

	15. Ad Rotator

Supplied by: Vedanta Barooah <e-mail contact>

Random ad image list rotator

	16. Perceptron

Supplied by: André Paterlini Oliveira Vieira <e-mail contact>

Perceptron implementation for pattern recognition

	17. Combinatory Logic

Supplied by: Andrea Giammarchi <e-mail contact>

Calculate and generate array element combinations

	18. Graf

Supplied by: Protung Dragos <e-mail contact>

Computing routes and distances between two points

	19. Barcode128 pattern compute class

Supplied by: GuinuX <e-mail contact>

A class which computes barcode128 pattern

	20. Probabilistic

Supplied by: Julian Sanchez <e-mail contact>

Perform common probabilistic analisis calculations

	21. Combinatorics

Supplied by: stefano dolzi <e-mail contact>

Make combinatorial statistics calculations

	22. SHA

Supplied by: Chris Monson <e-mail contact>

Pure PHP implementation of the Secure Hash Algorithm.

	23. Numerical

Supplied by: Richard Munroe <e-mail contact>

Perform numerical and statistical functions

	24. BioR

Supplied by: iztok strzinar <e-mail contact>

Calculate biorhythm curve values and draw diagrams

	25. Binary Tree Algorithms

Supplied by: BasicA <e-mail contact>

There are many types of data structures defined by the pioneer programmers in the past the direct interface to them datastructures have been an imperative but today datastructure have been taken for granted.

	26. Encryption

Supplied by: HAMMAD <e-mail contact>

Encrypt and decrypts text with pure PHP

	27. UID

Supplied by: Ultrasine Milch <e-mail contact>

Generate unique identifier using SHA1 algorithm

	28. Kruskal

Supplied by: nikita m. kozlvovsky <e-mail contact>

Find minimum spanning tree using Kruskal algorithm

	29. Quicksort

Supplied by: Bas Jobsen <e-mail contact>

Quicksort produces a sorted sequence of a array

	30. Image Nudity Filter

Supplied by: Bakr Alsharif <e-mail contact>

Determine whether an image may contain nudity

	31. Joe Celko Nested Sets

Supplied by: Setec Astronomy <e-mail contact>

Manage tree database structure with Celko approach

	32. Linked List

Supplied by: Bas Jobsen <e-mail contact>

Linked List

	33. Pure PHP Spell Check

Supplied by: Jeff Welch <e-mail contact>

Spell check text using only base PHP functions

	34. Histogram class

Supplied by: Jesus M. Castagnetto <e-mail contact>

generate histograms from data set

	35. Love Calculator

Supplied by: DigitalDoener <e-mail contact>

Calculate the love factor between two names

	36. guaranix Rank

Supplied by: Cesar D. Rodas <e-mail contact>

Implementation of the Google page rank algorithm

	37. Alternate text

Supplied by: Alexander Amzin <e-mail contact>

Alternative strings; (string1|string2|string3)...

	38. math_class

Supplied by: Christiaan Westerbeek <e-mail contact>

A Math Class containing only one function numconv($systemin, $systemout, $number, $length).

	39. Guid

Supplied by: Binzy Wu <e-mail contact>

Generate global unique identifiers text values

	40. Sort

Supplied by: Maldar <e-mail contact>

Sorting arrays with different algorithms

	41. Prime

Supplied by: Wan-Leong Jiangti <e-mail contact>

Determine if a number is prime number

	All class groups	>	Algorithms	>	Top rated classes (41)