function mb_strpos($haystack, $needle, $offset = 0, $encoding = '')
{
global $mbemu_internals;
$encoding = mb_detect_encoding($haystack, $encoding);
switch ($e = $mbemu_internals['encoding'][$encoding]) {
case 0:
//ascii
//ascii
case 1:
//euc-jp
//euc-jp
case 2:
//shift-jis
//shift-jis
case 4:
//utf-8
//utf-8
case 5:
//utf-16
//utf-16
case 6:
//iso-8859-1
preg_match_all('/' . $mbemu_internals['regex'][$e] . '/', $haystack, $ar_h);
preg_match_all('/' . $mbemu_internals['regex'][$e] . '/', $needle, $ar_n);
return _sub_strpos($ar_h[0], $ar_n[0], $offset);
case 3:
//jis
$haystack = mb_convert_encoding($haystack, 'SJIS', 'JIS');
$needle = mb_convert_encoding($needle, 'SJIS', 'JIS');
preg_match_all('/' . $mbemu_internals['regex'][2] . '/', $haystack, $ar_h);
preg_match_all('/' . $mbemu_internals['regex'][2] . '/', $needle, $ar_n);
return _sub_strpos($ar_h[0], $ar_n[0], $offset);
}
}
function mb_strpos($haystack, $needle, $offset = 0, $encoding = '')
{
global $_mb_encoding, $euc_match, $utf8_match, $sjis_match;
$encoding = _get_encoding($haystack, $encoding);
switch ($_mb_encoding[$encoding]) {
case 1:
//euc-jp
preg_match_all("/{$euc_match}/", $haystack, $ar_h);
preg_match_all("/{$euc_match}/", $needle, $ar_n);
return _sub_strpos($ar_h[0], $ar_n[0], $offset);
case 0:
//ascii
//ascii
case 4:
//utf-8
preg_match_all("/{$utf8_match}/", $haystack, $ar_h);
preg_match_all("/{$utf8_match}/", $needle, $ar_n);
return _sub_strpos($ar_h[0], $ar_n[0], $offset);
case 2:
//shift-jis
preg_match_all("/{$sjis_match}/", $haystack, $ar_h);
preg_match_all("/{$sjis_match}/", $needle, $ar_n);
return _sub_strpos($ar_h[0], $ar_n[0], $offset);
case 3:
//jis
$haystack = mb_convert_encoding($haystack, 'SJIS', 'JIS');
$needle = mb_convert_encoding($needle, 'SJIS', 'JIS');
preg_match_all("/{$sjis_match}/", $haystack, $ar_h);
preg_match_all("/{$sjis_match}/", $needle, $ar_n);
return _sub_strpos($ar_h[0], $ar_n[0], $offset);
}
}
