图书管理程序（二）

($a_last1=="")){
    echo"第一作者的姓名不能为空。";
    //exit;
}
else{
    $a_first1=trim($a_first1);
    $a_last1=trim($a_last1);
    $address=trim($address);
    $zipcode=trim($zipcode);
    $telephone=trim($telephone);
    $email=trim($email);
       $s_author="select author_id from author where first_name=\"$a_first1\" and last_name=\"$a_last1\"";
       $results = @mysql_query($s_author);
       $count2=mysql_fetch_array($results);
       if(mysql_num_rows($results)<1){
        $q_author="INSERT INTO author (first_name, last_name, address, zipcode, telephone, email) VALUES (\"$a_first1\", \"$a_last1\", \"$address\",  \"$zipcode\", \"$telephone\", \"$email\")";
        $result1 = @mysql_query($q_author);
        if($result1){
                   $author_id= mysql_insert_id();
          }
    }
    else
        $author_id =$count2[0];
     
    if($books_id!=""

关键词：图书管理程序（二）