fastcgi_cache analyzer

analyze.php

<?php
error_reporting(0);
include('Cache.php');
$c = new fcgiCacheAnalyze('/var/log/nginx/levi.cache.log');

Cache.php

<?php

class fcgiCacheAnalyze {
        public function __construct($file) {
                $log = file_get_contents($file);
                $lines = explode("\n", $log);
                $pages = [];
                for($i=0;$i<count($lines) - 1;$i++) {
                        $line = explode(" ", $lines[$i]);
                        if($line[2] == "-") {
                                $line[2] = 'MISS';
                        }
                        if(isset($pages[$line[1]][$line[2]])) {
                                $pages[ $line[1] ] [ $line[2] ]++;
                        } else {
                                $pages[ $line[1] ] [ $line[2] ] = 1;
                        }
                        $pages[ $line[1] ] ['size'] = $line[3];
                        if($line[2] == "MISS") {
                                $pages[ $line[1] ] ['time'] = $line[4];
                        }
                }
                $mask = "| %-20.20s | %-5.5s | %-5.5s | %-5.5s | %-5.5s | %-5.5s | %-5.5s\n";
                printf($mask, 'Page', 'TOTAL', 'HITS', 'MISS', 'EXPIRED', 'TIME', 'RATIO');
                foreach($pages as $page => $value) {
                        $total = $pages[$page]['HIT'] + $pages[$page]['MISS'] + $pages[$page]['EXPIRED'];

                        $ratio = ($pages[$page]['HIT'] / $total) * 100;
                        printf($mask, $page, $total, $pages[$page]['HIT'], $pages[$page]['MISS'],
                                $pages[$page]['EXPIRED'], $pages[$page]['time'], $ratio);
                }
        }
}

nginx.conf

http {
  // . . .
    log_format cache '$request_method $uri $sent_http_x_cache $bytes_sent $request_time';
  // . . .
}