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i used script user change password when logged in , when tested showed error message
notice: undefined index: username in /home/www/sitename/directory/changepw.php on line 8 notice: undefined index: pin in /home/www/sitename/directory/changepw.php on line 9 notice: undefined index: newpassword in /home/www/sitename/directory/changepw.php on line 10 notice: undefined index: repeatnewpassword in /home/www/sitename/directory/changepw.php on line 11
this have in line 8,9,10and 11
$username = $_post['username']; $pin = $_post['pin']; $newpassword = $_post['newpassword']; $repeatnewpassword = $_post['repeatnewpassword']; this html code below
<style type="text/css"> a:link { text-decoration: none; } a:visited { text-decoration: none; } a:hover { text-decoration: none; } a:active { text-decoration: none; } </style> <div id="inlogscherm"> <form name="form1" method="post" action="changepw.php"> <div class="textm">change password</div><br> <div class="text">username:</div><div class="invulbalkje"><? echo "{$_session['username']}"; ?></div><br /> <input name="username" type="text" id="username" value="<? echo "{$_session['username']}"; ?>"> <div class="text">password:</div><input name="pin" type="password" id="pin" class="invulbalkje"><br /> <div class="text">new password:</div><input name="newpassword" type="password" id="newpassword" class="invulbalkje"><br /> <div class="text">repeat new password:</div><input name="repeatnewpassword" type="password" id="repeatnewpassword" class="invulbalkje"><br /> <input type="submit" name="submit" value="change" class="button"> <a href="logout.php">logout</a> </form> this php code below
<?php error_reporting(e_all); ini_set('display_errors', 1); session_start(); include 'db.php'; $username = $_post['username']; $pin = $_post['pin']; $newpassword = $_post['newpassword']; $repeatnewpassword = $_post['repeatnewpassword']; $encrypted_password=md5($pin); $encrypted_newpassword=md5($newpassword); $wtbusers = '`wtbusers`';//this should defined (change whatever table name) $result = mysql_query("select pin $wtbusers username='$username' , pin = '$pin'"); if(!$result) { echo"<script>alert('please fill form correctly')</script>"; } if(mysql_num_rows($result) != 0){ if($newpassword == $repeatnewpassword){ $sql=mysql_query("update $wtbusers set pin='$pin' username='$username'"); if($sql) { echo"<script>alert('successful')</script>"; } else { echo"<script>alert('error')</script>"; } } else { echo"<script>alert('error_password_not_matched')</script>"; } } else { echo"<script>alert('please fill form correctly')</script>"; } ?> thank you.
all other problems aside , addressing actual question; there no checking see if post being made can tell, adding @ symbol those, $username = @$_post['username']; in context fastest fix rid of them recommend checking post first. isset pretty that.
alternatively can turn off error reporting notices doing
error_reporting(e_all & ~e_notice); see error_reporting
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