update

application/helpers/debug_helper.php

@@ -0,0 +1,32 @@
+<?php
+defined('BASEPATH') or exit('No direct script access allowed');
+
+if (!function_exists('dbg')) {
+    // Affiche une boîte fixe en haut de page. $exit=true pour stopper.
+    function dbg($var, $label = 'DBG', $exit = false)
+    {
+        echo "<pre style='z-index:99999;position:fixed;top:0;left:0;right:0;
+                 max-height:40vh;overflow:auto;background:#111;color:#0f0;
+                 padding:10px;margin:0;border-bottom:2px solid #0f0'>";
+        echo htmlspecialchars($label, ENT_QUOTES, 'UTF-8'), "\n";
+        print_r($var);
+        echo "</pre>";
+        if ($exit) exit;
+    }
+}
+
+if (!function_exists('dd')) {
+    // dump + die
+    function dd($var, $label = 'DD')
+    {
+        dbg($var, $label, true);
+    }
+}
+
+if (!function_exists('console_log')) {
+    // Écrit dans la console Chrome via <script>
+    function console_log($var, $label = 'DBG')
+    {
+        echo "<script>console.log(" . json_encode([$label => $var], JSON_UNESCAPED_UNICODE) . ");</script>";
+    }
+}