<?php
$file = $argv[1];

$show_counts = false;
$min = 0;

$lines = file($file);
$chars = array();
for ($i = 0; $i <= 25; $i++) {
    $chars[$i] = array();
}
$matched = 0;
foreach ($lines as $line) {
    if (preg_match("#.*gclid=([a-zA-Z0-9\-_]+).*HTTP#", $line, $matches)) {
        $matched++;
        $gclid = $matches[1];
        // echo "Found GCLID= $gclid\n";
        for ($i = 0; $i <= 25; $i++) {
            $char = substr($gclid, $i, 1);
            $chars[$i][$char] = isset($chars[$i][$char]) ? $chars[$i][$char]+1 : 1;
        }
    }
}
echo "Found $matched appropriate lines\n";


foreach ($chars as $i => $values) {
    ksort($values);
    $line = '';
    foreach ($values as $letter => $count) {
        if ($count >= $min) {
            $line .= ($show_counts) ? "$letter($count) " : $letter;
        }
    }
    printf("Character %2s [%2u] %-64s\n", $i+1, strlen($line), $line);
}

?>