Problem with the names of plug-in menu items

[gushin]

The problem can be encoded in which you saved the file cpnav?

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I leave a blank line at the top. We believe in one direction)))

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I'm create cpnav file in install code and to be sure that the encoding is correct, I used the function mb_convert_encoding:

PHP Code:

$cpnav_wbcomplaint = '<?xml version="1.0" encoding="ISO-8859-1"?>
<navgroups product="wb_complaint">
<navgroup phrase="wbcomplaint_settings" hr="true" permissions="canadminsettings" displayorder="1">
<navoption displayorder="10">
<phrase>wb_complaint_edit_text</phrase>
<link>wb_complaint.php?action=edit_text</link>
</navoption>
<navoption displayorder="20">
<phrase>wb_complaint_edit_emails</phrase>
<link>wb_complaint.php?action=edit_email</link>
</navoption>
</navgroup>
</navgroups>
';
$cpnav_wbcomplaint = mb_convert_encoding($cpnav_wbcomplaint, "ISO-8859-1");

But nothing has changed...

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I tried to change the tag <phrase> to the tag <text> as advised in one of the forums.

<?xml version="1.0" encoding="ISO-8859-1"?>
<navgroups product="test_product" master="false">
  <navgroup text="test_product" permissions="canadminmaintain" hr="true" displayorder="10">
    <navoption displayorder="10">
      <text>first_item</text>
      <link>test.php?do=edit</link>
    </navoption>
    <navoption displayorder="20">
      <text>second_item</text>
      <link>admin_rbs.php?do=edit</link>
    </navoption>
    <navoption displayorder="30">
      <text>third_item</text>
      <link>admin_rbs.php?do=edit</link>
    </navoption>
  </navgroup>
</navgroups>

But still no change...

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Maybe you can tell which file script which generates the menu items, then I would be able to analyze the whole process and it is possible to solve the problem