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@will83
will83 / gist:5920606
Last active February 13, 2024 15:20
Fonction PHP permettant la conversion de Lambert93 à WGS84 (selon le fichier fourni par l'IGN).
<?php
function lambert93ToWgs84($x, $y){
$x = number_format($x, 10, '.', '');
$y = number_format($y, 10, '.', '');
$b6 = 6378137.0000;
$b7 = 298.257222101;
$b8 = 1/$b7;
$b9 = 2*$b8-$b8*$b8;
$b10 = sqrt($b9);
$b13 = 3.000000000;