better dmeo

Author: clxmstaab

demo.php

@@ -1,6 +1,6 @@
 <?php
 
-function demo(\PDO $pdo): void
+function demo(\PDO $pdo, string $email): void
 {
     // ---------- result-set type inference ----------
     $stmt = $pdo->query('SELECT email, adaid FROM ada', PDO::FETCH_ASSOC);
@@ -14,7 +14,8 @@ function demo(\PDO $pdo): void
 
     // ---------- query plan analysis ----------
 
-    $pdo->query("SELECT * FROM `ada` WHERE email = 'test@example.com';");
+    $stmt = $pdo->query("SELECT * FROM `ada` WHERE email = ?");
+    $stmt->execute($email);
 
     // ---------- in-depth query analysis ----------