求帮：php如何用正则获取浮点数

求帮：php怎么用正则获取浮点数？
'tmap 116.123456,39.123456‘
tmap后面有空格，
我想获取116.123456
和39.123456两个浮点坐标，请问怎么用正则获取？
------解决方案--------------------

<br />$str = 'tmap 116.123456,39.123456';<br />preg_match_all('/[^\s]+/', $str, $match);<br />$numstr = $match[0][1];<br />print_r(explode(',',$numstr));<br />

Array
(
    [0] => 116.123456
    [1] => 39.123456
)

------解决方案--------------------

$s = 'tmap 116.123456,39.123456';<br />preg_match_all('/[\d.]+/', $s, $r);<br />print_r($r[0]);

Array<br />(<br />    [0] => 116.123456<br />    [1] => 39.123456<br />)<br /><br />

------解决方案--------------------

$s='tmap 116.123456,39.123456';<br />$ar = preg_split('/[\s,]+/',$s);<br />print_r($ar);

------解决方案--------------------

$str = 'tmap 116.123456,39.123456';<br />print_r(preg_split('/[\s,]/', $str));