用php来phpmyadmin写入数据库的有关问题

';$i++; 
 mysql_query("insert into sea_info (parentid,categoryid,title,content,dotime) values('744','759','$os[title]','$os[content]','$os[createDate]')"); 
    }
    echo'';
    
    echo '';
while($os2=mysql_fetch_array($result)){
echo $i2;echo '--';echo date('Y-m-d',$os2['dotime']);
echo '
';$i2++;
    } 
    echo'';
    
echo $b;
echo '
';
echo $a;
?>