<?php
 
$data = <<<DATA
        set logtraffic all
set comments "ServerSomething TAS000001123"
        set ips-sensor "gDefault_sites"
    next
        set logtraffic all
        set comments "ServerSomething
CRQ00000123456  TAS000001123"
        set ips-sensor "gDefault_sites"
    next
        set logtraffic all
        set comments "ServerSomething"
        set ips-sensor "gDefault_sites"
    next
        set logtraffic all
        set comments "ServerSomething
CRQ00000123456  TAS000001123"
        set ips-sensor "gDefault_sites"
    next
DATA;
 
$regex = '~^\s*set comments\s\K"[^"]*"~m';
 
$data = preg_replace_callback($regex, function($match) {
	return preg_replace("~\s+~", " ", $match[0]);
},
$data);
echo $data;
?>

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