README

This package makes it easy to parse IIS log files using PHP. Supports the standard W3C log file format with default fields as well as the optional Host field.

Install via Composer

composer require theodorejb/iis-log-parser

Usage

Construct an SplFileObject instance for the IIS log file to be parsed. Then call the IISLogFile::getEntries static method, passing it the SplFileObject. This returns a generator which yields an IISLogEntry object for each entry in the file.

Code example which iterates over the entries of all log files in a directory:

use theodorejb\IISLogParser\IISLogFile;

$directory = new \FilesystemIterator('C:/inetpub/logs/LogFiles/W3SVC1');

while ($directory->valid()) {
    $current = $directory->current();
    echo "Processing {$current->getFilename()}\n";
    
    $entries = IISLogFile::getEntries($current->openFile());

    foreach ($entries as $entry) {
        echo "Request to {$entry->uri} occurred on {$entry->date->format(DATE_ATOM)}\n";
    }

    echo "\n";
    $directory->next();
}

The IISLogEntry class has the following public properties:

• DateTimeImmutable $date
• string $serverIP
• string $method
• string $uri
• string $query
• int $serverPort
• string $username
• string $clientIP
• string $useragent
• string $referer
• string $host
• int $statusCode
• int $subStatusCode
• int $win32StatusCode
• int $timeTakenMs

It also has a public getUriExtension() method.

Required fields

Only the Date and Time logging fields (used for the $date property) are required. Other properties will be set to a blank string (or 0, for int properties) if the associated logging field is absent.