function tag_counts() {
$counts = [];
foreach (glob(__DIR__ . "/data/idee/*/meta.json") as $metaFile) {
$meta = json_decode(file_get_contents($metaFile), true);
if (!empty($meta["tags"])) {
foreach ($meta["tags"] as $t) {
$t = trim($t);
if ($t !== "") $counts[$t] = ($counts[$t] ?? 0) + 1;
}
}
}
return $counts;
}
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