Loading only certain rows from txt file into mysql table using php - php

Question

I have a .txt file that logs some information. I want to load it to MySQL table, but I have a following problem: the .txt log file isn't uniform, meaning it looks something like this:
04092012 16:07:34.988 stuff1 stuff2 username1 importantStuff
04092012 16:08:12.145 stuff1 stuff2 stuff3 username2 stuff4 importantStuff
Important thing to say is that all usernames begin with the same characters, just like here. I know that I'm supposed to use something like:
$lines=file(log.txt);
foreach($lines as $v) {
$values = explode(' ',$v);
...
But I do not know how to transfer only date, time, username and importantStuff into MySQL table.
I appreciate any help I can get. Thanks in advance.

Answer 1

$file = file_get_contents('log.txt');
$lines = explode("\n", $file);
foreach($lines as $v) {
$values = explode(' ',$v);
$all = count($values);
$user = preg_match_all('/(user\w+\b)/', $v, $matches); // it will match all usernames that start with "user"
$time = $values[1];
$username = $matches[0][0];
$stuff = $values[($all-1)];
$date = $values[0];
$query = "INSERT INTO `MyTable` ('".$date."', '".$time."', '".$username."', '".$stuff."')";
}

Answer 2

If you are sure that the stuff parts do not contain the same pattern as the username part you can use something like:
$lines=file(log.txt);
foreach($lines as $v) {
$values = explode(' ',$v);
$date = "";
$time = "";
$important = "";
$username = "";
foreach($values as $cnt => $val){
if($cnt == 0){
$date = $val;
} else if($cnt == 1){
$time = $val;
} else if(substr($val, 0, 8) == 'username'){
$username = $val;
}
$important = $val;
}
$query = "INSERT INTO logtable VALUES ('$date', $time', '$username', '$important')";
}