There are multiple string segments in a string to be matched that match regular expressions, so how can they be matched separately?

There are several string segments in a string to be matched that match the regular expression, how can they be matched separately
Example:

Regular expression: 1.+2

String to match 31326451226476142345

I hope I can match it.
132
12
142

Rather than
132
13264512
132645122
1326451226476142
12
122
...


I use Preg_match_all () seems to come up with the above-mentioned unwanted results

For advice

------Solution--------------------

$s = ' 31326451226476142345 ';
Preg_match_all ('/1.*2/u ', $s, $m);
Print_r ($m);

Array
(
[0] = = Array
(
[0] = 132
[1] = 12
[2] = 142
)

)
------Solution--------------------
Upstairs right, plus a big u anti-lazy

