script to get sum-by-type reputation changes on SO

README.md

This is a quick'n'dirty script to get all reputation changes of a given Stack Overflow user, then sum them by type.

It was created as a partial answer for http://meta.stackoverflow.com/questions/152413/pie-chart-to-show-reputation-points-grouped-by-event-type .

You'll need to edit the user's ID at the top.

seapi.php

<?php

$user_id = 308825;
$url_pattern = "https://api.stackexchange.com/2.1/users/%d/reputation-history?page=%s&pagesize=100&site=stackoverflow";

$page = 1;
$sum_by_type = array();
do {
    echo "\rgetting page " . $page . "...";

    $url = sprintf($url_pattern, $user_id, $page);
    $contents = gzdecode(file_get_contents($url));
    $page_contents = json_decode($contents, true);

    foreach ($page_contents["items"] as $v) {
        if (!isset($sum_by_type[$v["reputation_history_type"]])) {
            $sum_by_type[$v["reputation_history_type"]] = 0;
        }

        $sum_by_type[$v["reputation_history_type"]] += $v["reputation_change"];
    }


    $has_more = $page_contents["has_more"];
    ++$page;
} while ($has_more);

echo "\n\n";

arsort($sum_by_type);

foreach ($sum_by_type as $k => $v) {
    echo $k . "\t" . $v . "\n";
}