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<?php $s = "03/21/19 11:20 LOC2 IN: NEW BD PN VO LVA 03/21/19 11:20 LOC2 IN: NEW BD PN VO LVA VB"; $res = []; if (preg_match_all('~(?:\G(?!\A)(?=.*LVA)|(IN:))\h+\K\S+~', $s, $matches, PREG_SET_ORDER, 0)) { $tmp = []; foreach ($matches as $r) { if (count($r) > 1) { if (count($tmp)>0) { $res[] = $tmp; $tmp = []; } } $tmp[] = $r[0]; } if (count($tmp)>0) { $res[] = $tmp; } } print_r($res);
Output for 7.1.25 - 7.1.27, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
Array ( [0] => Array ( [0] => NEW [1] => BD [2] => PN [3] => VO [4] => LVA ) [1] => Array ( [0] => NEW [1] => BD [2] => PN [3] => VO [4] => LVA ) )

preferences:
150.02 ms | 408 KiB | 5 Q