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<?php function get_numerics ($str) { preg_match_all('/\d+/', $str, $matches); return $matches[0]; } $one = 'foo bar 4 baz (5.5 qux quux)'; $two = 'bar baz 2 bar'; $three = 'qux bar 12 quux (3 foo)'; $four = 'foo baz 3 bar (13 quux foo)'; print_r(get_numerics($one)); print_r(get_numerics($two)); print_r(get_numerics($three)); print_r(get_numerics($four));
Output for 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Array ( [0] => 4 [1] => 5 [2] => 5 ) Array ( [0] => 2 ) Array ( [0] => 12 [1] => 3 ) Array ( [0] => 3 [1] => 13 )

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