分割，截取连接字符串

if (!empty($iddstr)) {

$darr=explode("\r\n",$iddstr);

foreach ($darr as $key => $value) {

$lp_num = explode("——",$value);

if(strlen($lp_num[0])!=10||strlen($lp_num[1])!=10){

$tt = $key + 1;

$this->assign(‘iddstr‘,$iddstr);

$this->error("第".$tt."个联票号段的位数不为10");

}

if($key == 0){

$where .= " and (left(lianpiaono,10) between ‘" . $lp_num[0] . "‘ and ‘" . $lp_num[1] . "‘)";

}else{

$where .= " or (left(lianpiaono,10) between ‘" . $lp_num[0] . "‘ and ‘" . $lp_num[1] . "‘)";

}

}

}