更新密碼到MySQL所以,我試圖改變表用戶的密碼,爲此,我使用下面的PHP代碼,但它沒有得到更新。無法使用php
<?php
session_start();
$host="localhost"; // Host name
$username="root"; // Mysql username
$password=""; // Mysql password
$db_name="bloodbank"; // Database name
$tbl_name="users"; // Table name
// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
// username ,password and newpassword sent from form
$username=$_POST['username'];
$password=$_POST['password'];
$newpassword=$_POST['newpassword'];
$sql="UPDATE $tbl_name SET password='$newpassword' WHERE username='$username' and password='$password'";
?>
然後我試圖使用此代碼,雖然我得到「更新成功」,在現實中卻是沒有得到在數據庫中更新,誰能告訴我哪裏錯誤。
<?php
session_start();
$host="localhost"; // Host name
$username="root"; // Mysql username
$password=""; // Mysql password
$db_name="bloodbank"; // Database name
$tbl_name="users"; // Table name
// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
// username,password and newpassword sent from form
$username=$_POST['username'];
$password=$_POST['password'];
$newpassword=$_POST['newpassword'];
$sql="SELECT * FROM $tbl_name WHERE username='$username' and password='$password'";
$result=mysql_query($sql);
// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
if($count==1)
{
$mysql="UPDATE $tbl_name SET password='$newpassword'";
echo "Updated Successfully";
}
else
{
echo "Wrong password or Username";
}
?>
那麼,那是因爲你沒有執行查詢。 –
你能告訴我怎麼做。 – manju
查詢的執行在哪裏? –