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run code in 150+ php & hhvm versions
Bugs & Features
<?php $A = "1 131 2 12 53"; preg_match_all("/\s?1\s?/", $A, $phones); var_dump($phones);
Output for 4.3.0 - 7.1.0
array(1) { [0]=> array(4) { [0]=> string(2) "1 " [1]=> string(1) "1" [2]=> string(2) "1 " [3]=> string(2) " 1" } }