Char encoding

array(3) {
  ["input_encoding"]=>
  string(5) "UTF-8"
  ["output_encoding"]=>
  string(5) "UTF-8"
  ["internal_encoding"]=>
  string(5) "UTF-8"
}


Fatal error:  Uncaught Error: Call to undefined function ia_htmlentities() in /lamp/www/ia_case/utiles/phpinfo.php:6
Stack trace:
#0 {main}
  thrown in /lamp/www/ia_case/utiles/phpinfo.php on line 6