Online PHP editor | output for T3Ov8

<?php $data = <<<FOO #shit ## #shit2 #sshit3 mine_sht : carftj ### 漢字漢字貔貅 tv: tee # # HI tvw: 9 #haha #aa 9abaa: ahah #heuens FOO; preg_match_all('~^\s*(?:(\w+)\s*:.[^\r\n#]*([^\r\n]*#*)?)?(#*(?:[^\r\n]|[\r\n]#)*)~um', $data, $matches); ///print_r($matches); $doc = ""; foreach($matches[1] as $i => $m) { $s = preg_replace('/\s+/', '', $m); //Remove whitespace if (str_starts_with($s, "#") || empty($s)){ //Valid next comment line $doc .= $matches[3][$i] . PHP_EOL; //Adding comments //print("DOC LOG: " . $doc . PHP_EOL); //LOG DOC continue; } print("KEY:\n" . $m . "\nDOC:\n" . $doc . "\nIDOC:\n" . $matches[2][$i] . "\n"); print("--------------------------------------------------\n"); $doc = $matches[3][$i]; //print("OPEN: ". $m . "-CLOSED\n"); }