PHPmysql数据库操作实例学习

1，获取表数据01

2. mysql_connect("localhost","dev","mysql");
3. mysql_select_db("dev");
4. $result=mysql_query("select id,name from tb_test");
5. while($row=mysql_fetch_array($result,MYSQL_ASSOC)){
6. print_r($row);echo "
   \n";
7. }
8. ?>

输出结果:

2，获取表数据02

2. mysql_connect("localhost","dev","mysql");
3. mysql_select_db("dev");
4. $result=mysql_query("select id,name from tb_test");
5. while($row=mysql_fetch_object($result)){
6. echo "ID:" .$row->id." text: ".$row->name."
   \n";
7. }
8. ?>

输出结果：

3，获取表数据03

2. mysql_connect("localhost","dev","mysql");
3. mysql_select_db("dev");
5. $result=mysql_query("select id,name from tb_test");
6. print "";
   print "
   ";
   print "
   ";
   while ($row = mysql_fetch_array($result))
   {
   print "
   ";
   print "
   ";
   print "
   ";
   }
   print "

   编码	名字
   {$row["id"]}	{$row["name"]}

   ";
7. ?>

输出结果： 4，获取数据分页04

2. $page=isset($_GET['page'])?intval($_GET['page']):1;
3. $num=3; //每页显示3条数据
4. $db=mysql_connect("localhost","dev","mysql");
5. $select=mysql_select_db("dev",$db);
6. $total=mysql_num_rows(mysql_query("select id,name from tb_test"));
7. $pagenum=ceil($total/$num);
8. If($page>$pagenum || $page == 0){
9. Echo "Error : Can Not Found The page .";
10. Exit;
11. }
12. $offset=($page-1)*$num; //获取limit的第一个参数的值，假如第一页则为(1-1)*10=0,第二页为(2-1)*10=10。
13. $info=mysql_query("select id,name from tb_test limit $offset,$num");
14. print "";
    print "
    ";
    print "
    ";
    While($row=mysql_fetch_array($info)){
    print "
    ";
    print "
    ";
    print "
    ";
    print "
    ";
    }//显示数据
    print "

    编码	名字
    {$row["id"]}	{$row["name"]}

    ";
15. For($i=1;$i<=$pagenum;$i++){
16. $show=($i!=$page)?"$i":"$i";
17. Echo $show." ";
18. }
19. ?>

输出结果：