--TEST--
Test mb_substitute_character() function : variation unmappable out char for convert encoding
--SKIPIF--
<?php
extension_loaded('mbstring') or die('skip');
?>
--FILE--
<?php
echo "*** Testing mb_substitute_character() : variation ***\n";
//japenese utf-8
$string_mb = base64_decode('5pel5pys6Kqe44OG44Kt44K544OI');

//output the default which is ? in ISO-8859-1, x3f
var_dump(bin2hex(mb_convert_encoding($string_mb, "ISO-8859-1", "UTF-8")));

mb_substitute_character(66);  //'B' in ISO-8859-1, x42
var_dump(bin2hex(mb_convert_encoding($string_mb, "ISO-8859-1", "UTF-8")));
mb_substitute_character("none"); //no substitution
var_dump(bin2hex(mb_convert_encoding($string_mb, "ISO-8859-1", "UTF-8")));
mb_substitute_character(280); //not valid in ISO-8859-1
var_dump(bin2hex(mb_convert_encoding($string_mb, "ISO-8859-1", "UTF-8")));


?>
--EXPECT--
*** Testing mb_substitute_character() : variation ***
string(14) "3f3f3f3f3f3f3f"
string(14) "42424242424242"
string(0) ""
string(14) "3f3f3f3f3f3f3f"