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<?php $s = '{1|{1078} {*|{1079}-}test{1|{4829}, test2 {4457}}} {*|{1078} {*|{1079}-}test3{1|{4829}, test4 {23232}}}'; if (preg_match_all('~\|\{(\d+)}~', $s, $matches)) { print_r(array_unique($matches[1])); }
Output for 7.1.25 - 7.1.30, 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 - 8.1.29, 8.2.0 - 8.2.21, 8.3.0 - 8.3.9
Array ( [0] => 1078 [1] => 1079 [2] => 4829 )

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