Dear moussa
It is the bug of Joomla default. Please try to go the file: \libraries\joomla\string\string.php and find:
// Same for iconv
if (function_exists('iconv'))
{
// These are settings that can be set inside code
iconv_set_encoding("internal_encoding", "UTF-8");
iconv_set_encoding("input_encoding", "UTF-8");
iconv_set_encoding("output_encoding", "UTF-8");
}
=> Edit to:
// Same for iconv
if (function_exists('iconv'))
{
// These are settings that can be set inside code
if (version_compare(PHP_VERSION, '5.6', '>='))
{
@ini_set('default_charset', 'UTF-8');
}
else
{
iconv_set_encoding("internal_encoding", "UTF-8");
iconv_set_encoding("input_encoding", "UTF-8");
iconv_set_encoding("output_encoding", "UTF-8");
}
}
Thanks