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Example code of kerigard/lpsolve

Informations about the package lpsolve

LPSolve

Build Status Total Downloads Latest Stable Version License

PHP wrapper around LPSolve 5.5, providing a safe and convenient interface for building and solving linear optimization problems.

Installation

Install via Composer

Load the Composer autoloader

[!IMPORTANT] This library requires the lp_solve PHP extension.

[!NOTE] The official lp_solve extension only supports PHP 5, so it needs to be compiled manually for modern PHP versions.

Building the lp_solve extension

(for PHP 5.6 - 8.x)

The repository Kerigard/lp-solve-php-docker contains maintained source directories for building the lp_solve extension for different PHP versions:

Branch PHP version
5.x PHP 5.x
7.x PHP 7.x
8.x PHP 8.x

1. Install lp-solve system package

2. Download source code

Replace 8.x with the desired branch.

3. Build and install

4. Enable the extension

Add to your php.ini:

Usage

Maximization with constraints

Minimization with bounds

Integer and Binary Variables

If you pass true instead of an array, all variables will become integer or binary.

Error handling

Invalid problem definition

Throwing exceptions for non-optimal solutions

Additional behavioral notes:

Callbacks

License

MIT. Please see the LICENSE FILE for more information.

All versions of lpsolve with dependencies

PHP Build Version
Package Version
Requires php Version >=5.6
ext-lpsolve Version >=5.5.0.8
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