function sendPDUSms($phone_num, $sms_text)
{
// 短信中心号码
$smsc = SMS_SMSC;
// $cmd_log = $smsc;
// $cmd_log .= $sms_text;
// 短信最大长度70个汉字，Unicode表示需要280个字节
$max_len = 280;
$invert_smsc = StringHelper::InvertNumbers($smsc);
$len = 1;
$s = chr(13);
$phone_num = "86" . $phone_num;
$sms_text = $sms_text;
$pdu_text = StringHelper::hex2str(StringHelper::gb2unicode($sms_text));
// $cmd_log .= StringHelper::gb2unicode($sms_text);
$invert_msisdn = StringHelper::InvertNumbers($phone_num);
// 拆分发送超过70汉字的短信(todo: 没有判断全英文的情况)
$pdu_len = strlen($pdu_text);
if ($pdu_len > $max_len) {
$pdu_text1 = substr($pdu_text, 0, $max_len);
$pdu_text = substr($pdu_text, $max_len, $pdu_len - $max_len);
} else {
$pdu_text1 = $pdu_text;
$pdu_text = "";
}
$pdu_len1 = sprintf("%02X", strlen($pdu_text1) / 2);
$pdu_text1 = $pdu_len1 . $pdu_text1;
$pdu_text1 = "11000D91" . $invert_msisdn . "000800" . $pdu_text1;
$atcmd = "AT+CMGS=" . sprintf("%d", strlen($pdu_text1) / 2) . chr(13);
$l = strlen($atcmd);
// $cmd = NOKIA_QD_CMGF_AT_COMMAND."0".chr(13);
// ser_write($cmd);
// $cmd_log .= $cmd;
ser_write($atcmd);
$cmd_log = $atcmd;
ser_write(" " . chr(26) . chr(13));
$pdu_text1 = "0891" . $invert_smsc . $pdu_text1 . chr(26) . chr(13);
$l = strlen($pdu_text1);
ser_write($pdu_text1);
$cmd_log .= $pdu_text1;
ser_write("AT+CMGS: 88 " . chr(13));
// $fp = fopen("pud_log.txt","w+");
// fwrite($fp, $cmd_log);
// fclose($fp);
}
