$re = '/(\w+ (\w+) (\d+) (\d+:\d+:\d+) (\d+)) (?:\d+ bytes )?From (.+)icmp_seq=\d+ (ttl=\d+ )?(.*)(time=(\d+.\d+) ms)?/mi';
$str = 'Tue May 10 10:25:10 2016 64 bytes from egp-tl7794.egp.ap-hop-paris.fr (10.149.219.99): icmp_seq=5 ttl=127 time=1.45 ms
Tue May 10 10:26:44 2016 From 10.149.219.253 icmp_seq=8 Destination Host Unreachable
############
(\\w+ (\\w+) (\\d+) (\\d+:\\d+:\\d+) (\\d+)) (?:\\d+ bytes )?From (.+)icmp_seq=\\d+ (ttl=\\d+ )?(.*)(time=(\\d+.\\d+) ms)?';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php