User:Eupeodes/Geohashing Map/code

<?php
class calc {
   public function doCalc($date, $dow){
       $md5 = md5($date."-".$dow);
       list($lat,$lng) = str_split($md5,16);
       return array($this->hex2dec($lat), $this->hex2dec($lng));
   }

   private function hex2dec($var){
       $o = 0;
       for($i=0;$i<16;$i++){
           $o += hexdec($var[$i])*pow(16,-$i-1);
       }
       return $o;
   }
}
?>

usage:

<?php
$calc = new calc();
list($lat, $lng) = $calc->doCalc($date, $dow);
?>

• for $date the date of the hash should be filled in in the format yyyy-mm-dd
• for $dow the dow that should be used should be filled in with a dot as decimal sign.