Fail on use accents in wpcf7_form_tag_data_option filter

I’m using the ‘wpcf7_form_tag_data_option’ (a great filter, btw!) with the following codes:
For the form: <label Select: [select* menu-178 include_blank data:my.unique.id]</label>

add_filter( 'wpcf7_form_tag_data_option', 'uniqueid_wpcf7_categorias', 10, 3 );
function uniqueid_wpcf7_categorias( $null, $options, $args  ) {
    if (in_array('my.unique.id',$options)) {
        return array("Baba", "Pedreiro", 'Mecanico');
    }
    return $null;
}

Everything works fine, but when I change the code:
return array("Baba", "Pedreiro", 'Mecanico');
for this code:
return array("Babá", "Pedreiro", 'Mecânico');,
the result only shows the “Pedreiro” option.

I tested a direct input of Babá and Mecânico (like bellow) and it worked out.
<label Select: [select* menu-178 include_blank "Babá" "Pedreiro" "Mecânico"]</label>

How could I solve it?

Thanks in advance.

• This topic was modified 6 years, 8 months ago by brunonar.