preg_match_all得到最后一场比赛

Question

Is it possible to get the last match using preg_match_all ? Using this regex will only return 126 81 and that's not what I'm after. In this case I want 183 34 to be returned.

$string = 'Korpstigen 126 183 34 Kalmar';
preg_match_all("/[0-9]{5}|[0-9]{3} [0-9]{2}/", $string, $matches, PREG_OFFSET_CAPTURE);

Answer 1

I suggest using word boundaries \\b :

preg_match_all("/\b[0-9]{5}\b|\b[0-9]{3} [0-9]{2}\b/", $string, $matches, PREG_OFFSET_CAPTURE);

regex101 demo .

Answer 2

If you're looking to just get 183 34 and ignore all other parts of the string:

preg_match_all("/[0-9]{3} [0-9]{2} /", $string, $matches);

will return

Array
(
    [0] => Array
        (
            [0] => 183 34 
        )

)

I'm not sure of your needs, but if you need all three numbers

preg_match_all("/[0-9]{2,3}/", $string, $matches);

will return

Array
(
    [0] => Array
        (
            [0] => 126
            [1] => 183
            [2] => 34
        )

)