Madrid Devs regex challenge :O

challenge.php

<?php

// ini_set('memory_limit', '2G');

$handle = fopen('muestra_log.txt', 'r');

if (!$handle) {
    die('Error loading file.');
}

// $results = [];
$keys = [
    'RemoteHost',
    'RemoteLogName',
    'RemoteUser',
    'TimeReceived',
    'RequestMethod',
    'RequestURL',
    'RequestHTTP',
    'Status',
    'ResponseBytes',
    'RequestHeaderUserAgent',
    'Cached',
    'ContentType',
    'Node',
    'RTime',
    'Company',
    'Referrer',
];

$count = 0;

while (($line = fgets($handle)) !== false) {
    preg_match('/(.*) (.*) (.*) \[(.*)\] "(.*) (.*) (.*)" (\d+|-) (\d+|-) "(.*)" (.*) "(.*)" "(.*)" ([\d\.]+|-) "(\d*|-)" "(.*)"/Ui', $line, $matches);

    array_shift($matches);
    $result = array_combine($keys, $matches);

    // Do something or save for later
    // $results[] = $result;

    $count++;
}

// foreach($results as $result) {
    // Do something
// }

echo 'Processed ' . $count . ' lines.' . PHP_EOL;

fclose($handle);