3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function get_numerics ($str) { preg_match_all('/\d*\.\d+/', $str, $matches); return $matches; } $one = 'foo bar 4.4 1 baz (5.1 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));
based on FAbaJ
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0rc3
Array ( [0] => Array ( [0] => 4.4 [1] => 5.1 ) ) Array ( [0] => Array ( ) ) Array ( [0] => Array ( ) ) Array ( [0] => Array ( ) )