Clean up PHP warnings

Noticed them while checking my test server

Author: flodolo

app/models/mainsearch_glossary.php

@@ -16,13 +16,6 @@
 // Limit results to 200
 array_splice($locale1_strings, 200);
 
-// Get the locale results
-$results = [];
-
-foreach ($locale1_strings as $key => $str) {
-    $results[$key] = $tmx_target[$key];
-}
-
 $perfect = $imperfect = [];
 
 // We want to test compound words as well, /ex: 'switch to'
@@ -77,7 +70,7 @@ function ($element) use ($word) {
 $get_results = function ($arr) use ($tmx_target) {
     $results = [];
     foreach ($arr as $val) {
-        if ($tmx_target[$val] != '') {
+        if (isset($tmx_target[$val]) && $tmx_target[$val] != '') {
             $results[$val] = $tmx_target[$val];
         }
     }

app/views/gaia.php

@@ -309,16 +309,23 @@ function ($str) {
        . '</tr>';
 
 foreach ($common_keys as $key => $val) {
+    $get_localized_string = function ($id) use ($key, $strings) {
+        // Avoid warnings if the string is not localized
+
+        return isset($strings[$id][$key]) ?
+            $strings[$id][$key] :
+            '<em class="error">missing string</em>';
+    };
     if (trim(strtolower($strings[$englishchanges[0] . '-en-US'][$key])) != trim(strtolower($strings[$englishchanges[1] . '-en-US'][$key]))) {
         $table .=
               '<tr>'
             . '<td><span class="celltitle">Key</span><div class="string">' . ShowResults::formatEntity($key) . '</div></td>'
             . '<td><span class="celltitle">Gaia' . $repo_one . '</span><div class="string">'
             . ShowResults::highlight(Utils::secureText($strings[$englishchanges[0] . '-en-US'][$key]), 'en-US')
-            . '<br><small>' . Utils::secureText($strings[$englishchanges[0]][$key]) . '</small></div></td>'
+            . '<br><small>' . $get_localized_string($englishchanges[0]) . '</small></div></td>'
             . '<td><span class="celltitle">Gaia' . $repo_two . '</span><div class="string">'
             . ShowResults::highlight(Utils::secureText($strings[$englishchanges[1] . '-en-US'][$key]), 'en-US')
-            . '<br><small>' . Utils::secureText($strings[$englishchanges[1]][$key]) . '</small></div></td>'
+            . '<br><small>' . $get_localized_string($englishchanges[1]) . '</small></div></td>'
             . '</tr>';
     }
 }