proj4php

PHP-class for proj4 This is a PHP-Class for geographic coordinates transformation using proj4 definitions, thanks to a translation from Proj4JS.

Updated Requirements and Features

To keep up with the relentless pace of PHP versions and best practice, the following features are being implemented on this package:

• Namespacing.
• PHP5.4+ syntax (not aiming to be bleeding edge here, just yet)
• PSR-2 styling
• PSR-4 autoloader
• semver relase numbers to packagist.org
• Full compatibility with composer
• Tests to come once the above is implemented.

A legacy branch php4proj5.2 will be maintained for older applications that need it.

Using

include("vendor/autoload.php");

use proj4php\Proj4php;
use proj4php\Proj;
use proj4php\Point;

// Initialise Proj4
$proj4 = new Proj4php();

// Create two different projections.
$projL93    = new Proj('EPSG:2154', $proj4);
$projWGS84  = new Proj('EPSG:4326', $proj4);

// Create a point.
$pointSrc = new Point(652709.401, 6859290.946);

// Transform the point between datums.
$pointDest = $proj4->transform($projL93, $projWGS84, $pointSrc);

// Display the result.
echo "Source: " . $pointSrc->toShortString() . " in L93 <br>";
echo "Conversion: " . $pointDest->toShortString() . " in WGS84<br><br>";

// Source: 2.3557811127971 48.831938054369 in L93
// Conversion: 2.3557811127971 48.831938054369 in WGS84

There are also ways to define inline projections.

A PSR-4 autoloader will be introduced shortly, and that will change many of the paths and classnames above.

Developing

Feel free to fork us and submit your changes!