will83

<?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;