currency validated with non-numeric value

database/seeds/CurrencyUpdates.php

@@ -23,6 +23,12 @@ class CurrencyUpdates extends Seeder
         
         
         $i = 0;
         $i = 0;
 
 
+        DB::table('currency')
+        ->updateOrInsert(
+            ['iso' => "EUR", 'name' => "Euro"],
+            ['rates' => 1]
+        );
+
         foreach($XMLContent as $line){ 
         foreach($XMLContent as $line){ 
             if(preg_match("/currency='([[:alpha:]]+)'/",$line,$currencyCode)){ 
             if(preg_match("/currency='([[:alpha:]]+)'/",$line,$currencyCode)){ 
             if(preg_match("/rate='([[:graph:]]+)'/",$line,$rate)){ 
             if(preg_match("/rate='([[:graph:]]+)'/",$line,$rate)){ 

resources/views/currency.blade.php

@@ -27,8 +27,10 @@
         <button class="btn btn--pill" type="submit">Convert!</button>
         <button class="btn btn--pill" type="submit">Convert!</button>
       </form>
       </form>
       <?php
       <?php
-        if( isset($_GET["From"])) 
+        if( isset($_GET["From"]) && isset($_GET["Amount"]) && isset($_GET["To"])) 
         {
         {
+          if (!empty($_GET["From"]) && !empty($_GET["Amount"]) && !empty($_GET["To"])){
+
             $value = $_GET['Amount']; 
             $value = $_GET['Amount']; 
                       
                       
             $arrFrom = (DB::table('currency')->select('rates')->where('iso', '=', $_GET['From'])->get())->pluck('rates');
             $arrFrom = (DB::table('currency')->select('rates')->where('iso', '=', $_GET['From'])->get())->pluck('rates');
@@ -40,6 +42,7 @@
             $rez = ($value/$From) * $To;
             $rez = ($value/$From) * $To;
             echo $rez;
             echo $rez;
           }
           }
+        }
       ?>
       ?>
       </div>
       </div>
     </div>
     </div>