PHP mysql 데이터베이스 조작 예제 학습

1，获取表数据01

  mysql_connect("localhost","dev","mysql");
  mysql_select_db("dev");
  $result=mysql_query("select id,name from tb_test");
  while($row=mysql_fetch_array($result,MYSQL_ASSOC)){
    print_r($row);echo "n";
  }
?>

输出结果:

2，获取表数据02

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

输出结果：

3，获取表数据03

  mysql_connect("localhost","dev","mysql");
  mysql_select_db("dev");

  $result=mysql_query("select id,name from tb_test");
  print "";  print "";  print "";    while ($row = mysql_fetch_array($result))  {  print "";  print "";  print "";  }  print "编码
名字



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




";
?>

输出结果： 4，获取数据分页04

$page=isset($_GET['page'])?intval($_GET['page']):1;
$num=3; //每页显示3条数据
$db=mysql_connect("localhost","dev","mysql");
$select=mysql_select_db("dev",$db);
$total=mysql_num_rows(mysql_query("select id,name from tb_test"));
$pagenum=ceil($total/$num);
If($page>$pagenum || $page == 0){
       Echo "Error : Can Not Found The page .";
       Exit;
}
$offset=($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。
$info=mysql_query("select id,name from tb_test limit $offset,$num");
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"]}






";
For($i=1;$i       $show=($i!=$page)?"$i":"$i";
       Echo $show." ";
}
?>

输出结果：