question-1

<?php

    try {
        $logFile = fopen("/WWW/nginx/godaddy/log-file.log", 'rb');

    } catch( Exception $e ) {
        error_log("File could not be opened. Exiting.", $e);
        exit();
    }

    $totalRequests = 0;
    $codes = [];
    $pageVists = [];
    $logRegex = '/^(\S+) (\S+) (\S+) (\S+) (\S+) \"(\S+) (\S+) (\S+) (\S+) (\S+)/';
    while (($line = fgets($logFile)) !== false) {
        preg_match($logRegex ,$line, $matches);

	// process status codes
	array_key_exists(9,$matches) ? $statusCode = $matches[9] : $statusCode = "unknown";
        (!isset($codes[$statusCode])) ? $codes[$statusCode] = 1 : $codes[$statusCode]++;

	// process popular files
	array_key_exists(7,$matches) ? $url = $matches[7] : $url = "unknown";
        (!isset($pageVisits[$url])) ? $pageVisits[$url] = 1 : $pageVisits[$url]++;

	$totalRequests++;

    }

    fclose($logFile);

    foreach($codes as $code => $total) {
	echo "Total " . $code . " codes = " . $total . " <br/> ";
    }

    echo "Total Requests = " . $totalRequests;

    echo "<br/><br/> <b>Top 5 pages visited </b><br/>";
    arsort($pageVisits);

    $pageVisitCounter = 1;
    foreach($pageVisits as $url => $total) {
        echo $pageVisitCounter . ". " . $url . " = " . $total . "<br/>";

        if($pageVisitCounter >= 5)
	    break;
        $pageVisitCounter++;
    }