Initial commit: 교육 프로젝트 배포

bbs/_tmp/_inspect_learning_indexes.php

@@ -0,0 +1,20 @@
+<?php
+declare(strict_types=1);
+
+require __DIR__ . '/../db_conn.php';
+
+$pdo = db_conn();
+
+echo "--- SHOW CREATE TABLE ---\n";
+$row = $pdo->query('SHOW CREATE TABLE edu_learning_histories')->fetch(PDO::FETCH_ASSOC);
+echo ($row['Create Table'] ?? 'N/A') . "\n\n";
+
+echo "--- INDEXES ---\n";
+$stmt = $pdo->query('SHOW INDEX FROM edu_learning_histories');
+foreach ($stmt as $r) {
+    echo ($r['Key_name'] ?? ''), "\t",
+         ($r['Seq_in_index'] ?? ''), "\t",
+         ($r['Column_name'] ?? ''), "\t",
+         ((int)($r['Non_unique'] ?? 1) === 0 ? 'UNIQUE' : 'NON_UNIQUE'),
+         "\n";
+}