The outsourced fixes to Opencart 3 and me replacing brackets with sub…

admin/currency/currency.php

@@ -0,0 +1,52 @@
+<?php
+$conn=mysqli_connect("localhost", "kasw_admin_opencart", "admin@123", "kasw_opencart", 3306);
+if(isset($_POST['currency-status'])!='' )
+{
+
+ $date = date('Y/m/d H:i:s');
+
+$cur_status=$_POST['currency-status'];
+if($cur_status==1)
+{
+  $select = "SELECT * FROM oc_currency  WHERE `code`='SEK'";
+  $check_data=mysqli_query($conn,$select);
+  $rowcount=mysqli_num_rows($check_data);
+  if($rowcount==1)
+  {
+  $update = "UPDATE `oc_currency` SET `status` = '1' WHERE `code`='SEK'";
+  $update_currency=mysqli_query($conn,$update);
+
+  if($update_currency)
+  {
+  echo 'sucessfully updated the setting';
+  }else{
+  echo 'error';
+  }
+  }elseif($rowcount==0){
+  $sql = "INSERT INTO `oc_currency` (`title`, `code`, `symbol_left`, `symbol_right`, `decimal_place`, `value`, `status`, `date_modified`) VALUES ('Swedish krona', 'SEK', 'kr', '', '1', '1', '1', '$date')";
+  $insert=mysqli_query($conn,$sql);
+
+  if($insert)
+  {
+  echo 'sucessfully Added the setting';
+  }else{
+  echo 'error';
+  }
+  }
+
+}
+  if($cur_status==0)
+{
+  $update = "UPDATE `oc_currency` SET `status` = '0' WHERE `code`='SEK'";
+  $update_currency=mysqli_query($conn,$update);
+
+  if($update_currency)
+  {
+  echo 'sucessfully updated the setting';
+  }else{
+  echo 'error';
+  }
+}
+}
+
+?>

admin/view/template/extension/module/bmcheckout/settings.twig

@@ -242,6 +242,7 @@
                                    class="form-control" />
                         </div>
                     </div>
+
                     <div class="form-group">
                         <label class="col-sm-2 control-label" for="input-status">{{ entry_enable_logging_bm_requests }}</label>
                         <div class="col-sm-10">
@@ -258,14 +259,63 @@
                         </div>
                     </div>
                 </form>
+
+
+
             </div>
         </div>
+
+
+<form id="custom-module-setting" method="POST">
+
+
+
+
+          <div class="form-group">
+            <label class="col-sm-2 control-label" for="currency-status">Currency setting</label>
+            <div class="col-sm-10">
+              <select name="currency-status" id="currency-status" class="form-control">
+
+                <option value="1" selected="selected">{{ text_enabled }}</option>
+                <option value="0">{{ text_disabled }}</option>
+
+              </select>
+            </div>
+          </div>
+
+               </form>
+               <button name="add_currency" value="add_currency">save</button>
         {{ info_block }}
     </div>
 </div>
 {{ footer }}
 <script type="text/javascript">
     $(document).ready(function() {
         $.fn.pushEventsSwitcher.init();
+
+
     });
-</script>
+</script>
+<script>
+ $(document).ready(function() {
+$('button[name="add_currency"]').click(function(){
+
+  var form= $("#custom-module-setting");
+  var name=$('#input-title').val();
+$.ajax({
+   type:"POST",
+  url: "/admin/currency/currency.php",
+  data:form.serialize(),
+  success: function(response){
+    alert(response);
+  }
+});
+
+});
+  });
+</script>
+<style>
+button[name="add_currency"] {
+    margin: 10px;
+}
+</style>

system/library/encoding.php

@@ -144,11 +144,11 @@ public static function toUTF8($text)
             $max = strlen($text);
             $buf = "";
             for($i = 0; $i < $max; $i++){
-                $c1 = $text{$i};
+                $c1 = substr($text, $i, 1);
                 if($c1>="\xc0"){ //Should be converted to UTF8, if it's not UTF8 already
-                    $c2 = $i+1 >= $max? "\x00" : $text{$i+1};
-                    $c3 = $i+2 >= $max? "\x00" : $text{$i+2};
-                    $c4 = $i+3 >= $max? "\x00" : $text{$i+3};
+                    $c2 = $i+1 >= $max? "\x00" : substr($text, $i+1, 1);
+                    $c3 = $i+2 >= $max? "\x00" : substr($text, $i+2, 1);
+                    $c4 = $i+3 >= $max? "\x00" : substr($text, $i+3, 1);
                     if($c1 >= "\xc0" & $c1 <= "\xdf"){ //looks like 2 bytes UTF8
                         if($c2 >= "\x80" && $c2 <= "\xbf"){ //yeah, almost sure it's UTF8 already
                             $buf .= $c1 . $c2;