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library lpsolve
LPSolve extension as simple PHP library
makao/lpsolve
LPSolve extension as simple PHP library
- Sunday, March 20, 2016
- by makao
- Repository
- 2 Watchers
- 2 Stars
- 68 Installations
- PHP
- 0 Dependents
- 0 Suggesters
- 0 Forks
- 0 Open issues
- 1 Versions
- 6 % Grown
The README.md
LPSolve
LPSolve is a PHP extension for solving linear programming problems. This library provides a wrapper for standard lpsolve() function., (*1)
Installation
Run composer, (*2)
composer require makao/lpsolve
Require autoloader, (*3)
require 'vendor/autoload.php'
Usage
use makao\LPSolve\Constraint;
use makao\LPSolve\Problem;
use makao\LPSolve\Solver;
// Define constraints
$constraints = [
new Constraint([120, 210, 150.75], LE, 15000),
new Constraint([110, 30, 125], LE, 4000),
new Constraint([1, 1, 1], LE, 75)
];
// Or initialize them from string
// $constraints = [
// Constraint::fromString('120x + 210y + 150.75z <= 15000'),
// Constraint::fromString('110x + 30y + 125z <= 4000'),
// Constraint::fromString('1x + 1y + 1z <= 75')
// ];
// Define problem
$problem = new Problem([143, 60, 195], $constraints);
// Solve it!
$solver = new Solver(Solver::MAX); // Can be either Solver::MIN for minimalization
$solution = $solver->solve($problem);
var_dump($solution);
Note: Do not omit coefficient value when create constraint from string., (*4)
There are 3 examples provided in example.php., (*5)
For more information please visit: http://lpsolve.sourceforge.net, (*6)
License
MIT, (*7)