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<?php $re = '/([a-z0-9$])\1+|(?:([a-z0-9$])(?!\2))+/m'; $str = '$$$ 12345 aaa bbb ccc ddd eee 678 $$$ aaabbbbccc aaa-bbb-ddd aab aaaaaabbbbbbbbbbbbbc a000000009999999888888 abc000000009999999888888abd f 123fff dddk3ff333fk333'; preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0); foreach ($matches as $match) { echo "$match[0]\n"; }
Output for 5.6.38, 7.1.0 - 7.1.22, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
$$$ 12345 aaa bbb ccc ddd eee 678 $$$ aaa bbbb ccc aaa bbb ddd aa b aaaaaa bbbbbbbbbbbbb c a 00000000 9999999 888888 abc 00000000 9999999 888888 abd f 123 fff ddd k3 ff 333 fk 333
preferences:
103.44 ms | 1480 KiB | 4 Q