changed search matrici strategy

public/userarea/search_matrici.php

@@ -2,7 +2,11 @@
 require_once dirname(__DIR__, 2) . '/vendor/autoload.php';
 require_once __DIR__ . '/class/db-functions.php';
 include dirname(__DIR__) . '/../extra/auth.php';
-if (!Auth::check()) { http_response_code(401); echo json_encode(['error' => 'Unauthorized']); exit; }
+if (!Auth::check()) {
+    http_response_code(401);
+    echo json_encode(['error' => 'Unauthorized']);
+    exit;
+}
 
 header('Content-Type: application/json');
 ini_set('display_errors', '0');
@@ -59,15 +63,35 @@ if (isset($_GET['macro_list'])) {
     exit;
 }
 
-// Search (with optional MacroMatrice filter)
+// Search (with optional MacroMatrice filter) - multi-term AND, position-independent
 $results = [];
+
+// Spezza la query in termini separati (gestisce spazi multipli, rimuove vuoti)
+$terms = array_values(array_filter(
+    preg_split('/\s+/u', $q, -1, PREG_SPLIT_NO_EMPTY)
+));
+
 foreach ($matrici as $m) {
     $nome = $m['NomeMatrice'] ?? '';
     if ($macro !== '' && ($m['MacroMatrice'] ?? '') !== $macro) continue;
-    if ($q === '' || mb_strpos(mb_strtolower($nome), $q) !== false) {
+
+    if (empty($terms)) {
+        // Nessun termine digitato: mostra tutto fino al limite
         $results[] = ['id' => $m['IdMatrice'], 'text' => $nome];
-        if (count($results) >= $limit) break;
+    } else {
+        $nomeLower = mb_strtolower($nome);
+        $matchAll = true;
+        foreach ($terms as $t) {
+            if (mb_strpos($nomeLower, $t) === false) {
+                $matchAll = false;
+                break;
             }
         }
+        if (!$matchAll) continue;
+        $results[] = ['id' => $m['IdMatrice'], 'text' => $nome];
+    }
+
+    if (count($results) >= $limit) break;
+}
 
 echo json_encode(['results' => $results]);