php操作mysql資料庫的連線語句以及最簡單的增刪改查語句
阿新 • • 發佈：2019-01-07
//--------------------------------------------------------------------------
//-----------------------查詢剛剛插入的資料------------------------
$con = mysql_connect("localhost","root","123456");
mysql_select_db("databaseTest", $con);
$id=1;
$sql="select * from test where id=".$id;
$result=mysql_query($sql);//注意：如果此時直接列印$result,就會顯示：Resource id #3，要用mysql_fetch_array()函式接收資料，該函式返回一個數組
$data=mysql_fetch_array($result);
echo var_dump($data);
if ($con){mysql_close($con);}
//--------------------------------------------------------------------------
//-----------------------修改剛剛插入的資料------------------------
$con = mysql_connect("localhost","root","123456");
mysql_select_db("databaseTest", $con);
$id=1;
$name="lisi";
$sql="update test set name='".$name."' where id=".$id;
mysql_query($sql);
echo "操作已完成";
if ($con){mysql_close($con);}
//-----------------------刪除剛剛插入的資料
$con = mysql_connect("localhost","root","123456");
mysql_select_db("databaseTest", $con);
$id=1;
$sql="delete from test where id=".$id;
mysql_query($sql);
echo "操作已完成";
if ($con){mysql_close($con);}
//--------------------------------------------------------------------------
*/
?>
//-----------------------查詢剛剛插入的資料------------------------
$con = mysql_connect("localhost","root","123456");
mysql_select_db("databaseTest", $con);
$id=1;
$sql="select * from test where id=".$id;
$result=mysql_query($sql);//注意：如果此時直接列印$result,就會顯示：Resource id #3，要用mysql_fetch_array()函式接收資料，該函式返回一個數組
$data=mysql_fetch_array($result);
echo var_dump($data);
if ($con){mysql_close($con);}
//--------------------------------------------------------------------------
//-----------------------修改剛剛插入的資料------------------------
$con = mysql_connect("localhost","root","123456");
mysql_select_db("databaseTest", $con);
$id=1;
$name="lisi";
$sql="update test set name='".$name."' where id=".$id;
mysql_query($sql);
echo "操作已完成";
if ($con){mysql_close($con);}
//-----------------------刪除剛剛插入的資料
$con = mysql_connect("localhost","root","123456");
mysql_select_db("databaseTest", $con);
$id=1;
$sql="delete from test where id=".$id;
mysql_query($sql);
echo "操作已完成";
if ($con){mysql_close($con);}
//--------------------------------------------------------------------------
*/
?>