php gbk转拼音

/**

* gbk转拼音

* @param $txt

*/

function gbk_to_pinyin($txt) {

$l = strlen($txt);

$i = 0;

$pyarr = array();

$py = array();

$filename = CODETABLEDIR . 'gb-pinyin.table';

$fp = fopen($filename, 'r');

while (!feof($fp)) {

$p = explode("-", fgets($fp, 32));

$pyarr[intval($p[1])] = trim($p[0]);

}

fclose($fp);

ksort($pyarr);

while ($i < $l) {

$tmp = ord($txt[$i]);

if ($tmp >= 128) {

$asc = abs($tmp * 256 + ord($txt[$i + 1]) - 65536);

$i = $i + 1;

} else

$asc = $tmp;

$py[] = asc_to_pinyin($asc, $pyarr);

$i++;

}

return $py;

}