diff --git a/install.php b/install.php
index 976f985..45b21d3 100644
--- a/install.php
+++ b/install.php
@@ -35,8 +35,8 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
 
         // Test connection
         try {
-            $pdo = new PDO("mysql:host=$host;dbname=$name;charset=utf8mb4", $user, $pass);
-            $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+            $test_pdo = new PDO("mysql:host=$host;dbname=$name;charset=utf8mb4", $user, $pass);
+            $test_pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
 
             // Generate config file content
             $content = "<?php\n";
@@ -48,17 +48,17 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
             $content .= "\n";
             $content .= "if (!function_exists('db')) {\n";
             $content .= "    function db() {\n";
-            $content .= "        static $pdo;\n";
-            $content .= "        if (!$pdo) {\n";
+            $content .= "        static \$pdo;\n";
+            $content .= "        if (!\$pdo) {\n";
             $content .= "            try {\n";
-            $content .= "                $pdo = new PDO('mysql:host=' . DB_HOST . ';dbname=' . DB_NAME . ';charset=utf8mb4', DB_USER, DB_PASS);\n";
-            $content .= "                $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);\n";
-            $content .= "                $pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);\n";
-            $content .= "            } catch (PDOException $e) {\n";
-            $content .= "                die('Connection failed: ' . $e->getMessage());\n";
+            $content .= "                \$pdo = new PDO('mysql:host=' . DB_HOST . ';dbname=' . DB_NAME . ';charset=utf8mb4', DB_USER, DB_PASS);\n";
+            $content .= "                \$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);\n";
+            $content .= "                \$pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);\n";
+            $content .= "            } catch (PDOException \$e) {\n";
+            $content .= "                die('Connection failed: ' . \$e->getMessage());\n";
             $content .= "            }\n";
             $content .= "        }\n";
-            $content .= "        return $pdo;\n";
+            $content .= "        return \$pdo;\n";
             $content .= "    }\n";
             $content .= "}\n";
 
@@ -84,6 +84,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
                 $pdo = db();
                 $migrations_dir = __DIR__ . '/db/migrations/';
                 $files = glob($migrations_dir . '*.sql');
+                if ($files === false) $files = [];
                 sort($files);
 
                 $applied = 0;
@@ -94,20 +95,30 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
                     if (empty($sql)) continue;
 
                     try {
-                        // PDO::exec might fail if there's an error in the SQL, 
-                        // but we want to continue if it's "column already exists" or "table already exists"
-                        $pdo->exec($sql);
+                        // Split SQL into multiple statements if necessary
+                        // Simple split by semicolon. This might fail on some complex SQL, 
+                        // but usually works for basic migrations.
+                        $statements = array_filter(array_map('trim', explode(';', $sql)));
+                        foreach ($statements as $stmt_sql) {
+                            if (empty($stmt_sql)) continue;
+                            try {
+                                $pdo->exec($stmt_sql);
+                            } catch (Throwable $e) {
+                                $msg = $e->getMessage();
+                                // Check if it's a common "already exists" error which we can safely ignore
+                                if (strpos($msg, 'Duplicate column name') !== false || 
+                                    strpos($msg, 'Duplicate key name') !== false ||
+                                    strpos($msg, 'Duplicate table') !== false ||
+                                    strpos($msg, 'already exists') !== false) {
+                                    continue;
+                                } else {
+                                    throw $e;
+                                }
+                            }
+                        }
                         $applied++;
                     } catch (Throwable $e) {
-                        $msg = $e->getMessage();
-                        // Check if it's a common "already exists" error which we can safely ignore
-                        if (strpos($msg, 'Duplicate column name') !== false || 
-                            strpos($msg, 'Duplicate key name') !== false ||
-                            strpos($msg, 'already exists') !== false) {
-                            $applied++;
-                        } else {
-                            $errors[] = basename($file) . ": " . $msg;
-                        }
+                        $errors[] = basename($file) . ": " . $e->getMessage();
                     }
                 }
 
@@ -116,7 +127,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
                     header('Location: install.php?step=4');
                     exit;
                 } else {
-                    $error = "Applied $applied migrations, but some errors occurred:<br><ul><li>" . implode('</li><li>', $errors) . "</li></ul>";
+                    $error = "Applied migrations, but some errors occurred:<br><ul><li>" . implode('</li><li>', $errors) . "</li></ul>";
                 }
             } catch (Throwable $e) {
                 $error = "Migration failed: " . $e->getMessage();
@@ -178,9 +189,12 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
             <h2 class="text-center mb-4">Installer</h2>
             
             <div class="text-center step-indicator">
-                <?php for ($i = 1; $i <= 5; $i++): ?>
-                    <span class="step-dot <?= $i == $step ? 'active' : ($i < $step ? 'completed' : '') ?>"><?= $i ?></span>
-                <?php endfor; ?>
+                <?php for ($i = 1; $i <= 5; $i++):
+                    echo "<span class=\"step-dot ";
+                    if ($i == $step) echo "active";
+                    elseif ($i < $step) echo "completed";
+                    echo "\">$i</span>\n";
+                endfor; ?>
             </div>
 
             <?php if ($error): ?>
@@ -194,23 +208,23 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
             <?php if ($step === 1): ?>
                 <h4>Step 1: System Requirements</h4>
                 <ul class="list-group mb-4">
-                    <?php foreach ($requirements as $name => $met): ?>
-                        <li class="list-group-item d-flex justify-content-between align-items-center">
-                            <?= $name ?>
-                            <?php if ($met): ?>
-                                <span class="badge bg-success rounded-pill">OK</span>
-                            <?php else: ?>
-                                <span class="badge bg-danger rounded-pill">Failed</span>
-                            <?php endif; ?>
-                        </li>
-                    <?php endforeach; ?>
+                    <?php foreach ($requirements as $name => $met):
+                        echo "<li class=\"list-group-item d-flex justify-content-between align-items-center\">";
+                        echo "$name\n";
+                        if ($met) {
+                            echo "<span class=\"badge bg-success rounded-pill\">OK</span>";
+                        } else {
+                            echo "<span class=\"badge bg-danger rounded-pill\">Failed</span>";
+                        }
+                        echo "</li>\n";
+                    endforeach; ?>
                 </ul>
                 <div class="d-grid">
                     <?php if ($all_requirements_met): ?>
                         <a href="install.php?step=2" class="btn btn-primary">Next: Database Config</a>
-                    <?php else: ?>
-                        <button class="btn btn-secondary" disabled>Fix requirements to continue</button>
-                    <?php endif; ?>
+                    <?php else:
+                        echo "<button class=\"btn btn-secondary\" disabled>Fix requirements to continue</button>";
+                    endif; ?>
                 </div>
 
             <?php elseif ($step === 2): ?>
@@ -279,4 +293,4 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
     </div>
 </div>
 </body>
-</html>
+</html>
\ No newline at end of file