Password invalid using password_verify and password_hash [duplicate]












1
















This question already has an answer here:




  • Using password_hash and password_verify

    1 answer



  • “Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP

    28 answers




I am writing a login page. The password stored in my database is encrypted using password_hash. When I'm trying to compare between the entered password and the stored password, they don't match.



This is my form:



<input type="text" class="form-control" id="inlineFormInput"    placeholder="Jane Doe" name="username" required>

<input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password" name="password" required>


...and this is my PHP code:



<?php 
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "lab2";

if($dbc=@mysqli_connect($servername,$username,$password,$dbname)){
print "connected";
print "<br>";
$q = "select * from users where username = '". $_POST['username'] ."'
";

if($result=@mysqli_query($dbc,$q)){
$row = mysqli_fetch_array($result);
if(password_verify($_POST['password'],$row['password'])){
print "you are logged in!";
print "<br>";
}else {
print "username or password error";
//header('Refresh: 2;login.php');
}



}else{
print "error occured: ";
print mysqli_error($dbc);
}


}else {
print "connection error: ";
print mysqli_connect_error();
}




?>


this is how I created the hashed password



$password = $_POST['password'];
$hashed_password = password_hash($password, PASSWORD_DEFAULT);
$q = "insert into users (username,email,password,date)
values ('".$_POST['username']."','".$_POST['email']."','$hashed_password','$date')
";









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marked as duplicate by Funk Forty Niner mysql
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Nov 13 '18 at 23:32


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.














  • 1





    Please edit your question to include the source code how you create the password hash and store it in the database. Also, include the CREATE TABLE statement of your users table, the password column might not be big enough for the hash to store.

    – Progman
    Nov 13 '18 at 23:27






  • 1





    what is the password column's length? I'm betting it's not long enough to accomodate the (full) hash.

    – Funk Forty Niner
    Nov 13 '18 at 23:27








  • 1





    Seeing the above comment; I added another duplicate. Enable error reporting.

    – Funk Forty Niner
    Nov 13 '18 at 23:33








  • 1





    Please use a prepared statement; you're open to sql injection.

    – Funk Forty Niner
    Nov 13 '18 at 23:33






  • 1





    Didn't get what?

    – Funk Forty Niner
    Nov 13 '18 at 23:35
















1
















This question already has an answer here:




  • Using password_hash and password_verify

    1 answer



  • “Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP

    28 answers




I am writing a login page. The password stored in my database is encrypted using password_hash. When I'm trying to compare between the entered password and the stored password, they don't match.



This is my form:



<input type="text" class="form-control" id="inlineFormInput"    placeholder="Jane Doe" name="username" required>

<input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password" name="password" required>


...and this is my PHP code:



<?php 
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "lab2";

if($dbc=@mysqli_connect($servername,$username,$password,$dbname)){
print "connected";
print "<br>";
$q = "select * from users where username = '". $_POST['username'] ."'
";

if($result=@mysqli_query($dbc,$q)){
$row = mysqli_fetch_array($result);
if(password_verify($_POST['password'],$row['password'])){
print "you are logged in!";
print "<br>";
}else {
print "username or password error";
//header('Refresh: 2;login.php');
}



}else{
print "error occured: ";
print mysqli_error($dbc);
}


}else {
print "connection error: ";
print mysqli_connect_error();
}




?>


this is how I created the hashed password



$password = $_POST['password'];
$hashed_password = password_hash($password, PASSWORD_DEFAULT);
$q = "insert into users (username,email,password,date)
values ('".$_POST['username']."','".$_POST['email']."','$hashed_password','$date')
";









share|improve this question















marked as duplicate by Funk Forty Niner mysql
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Nov 13 '18 at 23:32


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.














  • 1





    Please edit your question to include the source code how you create the password hash and store it in the database. Also, include the CREATE TABLE statement of your users table, the password column might not be big enough for the hash to store.

    – Progman
    Nov 13 '18 at 23:27






  • 1





    what is the password column's length? I'm betting it's not long enough to accomodate the (full) hash.

    – Funk Forty Niner
    Nov 13 '18 at 23:27








  • 1





    Seeing the above comment; I added another duplicate. Enable error reporting.

    – Funk Forty Niner
    Nov 13 '18 at 23:33








  • 1





    Please use a prepared statement; you're open to sql injection.

    – Funk Forty Niner
    Nov 13 '18 at 23:33






  • 1





    Didn't get what?

    – Funk Forty Niner
    Nov 13 '18 at 23:35














1












1








1


1







This question already has an answer here:




  • Using password_hash and password_verify

    1 answer



  • “Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP

    28 answers




I am writing a login page. The password stored in my database is encrypted using password_hash. When I'm trying to compare between the entered password and the stored password, they don't match.



This is my form:



<input type="text" class="form-control" id="inlineFormInput"    placeholder="Jane Doe" name="username" required>

<input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password" name="password" required>


...and this is my PHP code:



<?php 
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "lab2";

if($dbc=@mysqli_connect($servername,$username,$password,$dbname)){
print "connected";
print "<br>";
$q = "select * from users where username = '". $_POST['username'] ."'
";

if($result=@mysqli_query($dbc,$q)){
$row = mysqli_fetch_array($result);
if(password_verify($_POST['password'],$row['password'])){
print "you are logged in!";
print "<br>";
}else {
print "username or password error";
//header('Refresh: 2;login.php');
}



}else{
print "error occured: ";
print mysqli_error($dbc);
}


}else {
print "connection error: ";
print mysqli_connect_error();
}




?>


this is how I created the hashed password



$password = $_POST['password'];
$hashed_password = password_hash($password, PASSWORD_DEFAULT);
$q = "insert into users (username,email,password,date)
values ('".$_POST['username']."','".$_POST['email']."','$hashed_password','$date')
";









share|improve this question

















This question already has an answer here:




  • Using password_hash and password_verify

    1 answer



  • “Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP

    28 answers




I am writing a login page. The password stored in my database is encrypted using password_hash. When I'm trying to compare between the entered password and the stored password, they don't match.



This is my form:



<input type="text" class="form-control" id="inlineFormInput"    placeholder="Jane Doe" name="username" required>

<input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password" name="password" required>


...and this is my PHP code:



<?php 
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "lab2";

if($dbc=@mysqli_connect($servername,$username,$password,$dbname)){
print "connected";
print "<br>";
$q = "select * from users where username = '". $_POST['username'] ."'
";

if($result=@mysqli_query($dbc,$q)){
$row = mysqli_fetch_array($result);
if(password_verify($_POST['password'],$row['password'])){
print "you are logged in!";
print "<br>";
}else {
print "username or password error";
//header('Refresh: 2;login.php');
}



}else{
print "error occured: ";
print mysqli_error($dbc);
}


}else {
print "connection error: ";
print mysqli_connect_error();
}




?>


this is how I created the hashed password



$password = $_POST['password'];
$hashed_password = password_hash($password, PASSWORD_DEFAULT);
$q = "insert into users (username,email,password,date)
values ('".$_POST['username']."','".$_POST['email']."','$hashed_password','$date')
";




This question already has an answer here:




  • Using password_hash and password_verify

    1 answer



  • “Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP

    28 answers








php mysql forms passwords






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 13 '18 at 23:31







aftermath

















asked Nov 13 '18 at 23:25









aftermathaftermath

165




165




marked as duplicate by Funk Forty Niner mysql
Users with the  mysql badge can single-handedly close mysql questions as duplicates and reopen them as needed.

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Nov 13 '18 at 23:32


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.









marked as duplicate by Funk Forty Niner mysql
Users with the  mysql badge can single-handedly close mysql questions as duplicates and reopen them as needed.

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Nov 13 '18 at 23:32


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.










  • 1





    Please edit your question to include the source code how you create the password hash and store it in the database. Also, include the CREATE TABLE statement of your users table, the password column might not be big enough for the hash to store.

    – Progman
    Nov 13 '18 at 23:27






  • 1





    what is the password column's length? I'm betting it's not long enough to accomodate the (full) hash.

    – Funk Forty Niner
    Nov 13 '18 at 23:27








  • 1





    Seeing the above comment; I added another duplicate. Enable error reporting.

    – Funk Forty Niner
    Nov 13 '18 at 23:33








  • 1





    Please use a prepared statement; you're open to sql injection.

    – Funk Forty Niner
    Nov 13 '18 at 23:33






  • 1





    Didn't get what?

    – Funk Forty Niner
    Nov 13 '18 at 23:35














  • 1





    Please edit your question to include the source code how you create the password hash and store it in the database. Also, include the CREATE TABLE statement of your users table, the password column might not be big enough for the hash to store.

    – Progman
    Nov 13 '18 at 23:27






  • 1





    what is the password column's length? I'm betting it's not long enough to accomodate the (full) hash.

    – Funk Forty Niner
    Nov 13 '18 at 23:27








  • 1





    Seeing the above comment; I added another duplicate. Enable error reporting.

    – Funk Forty Niner
    Nov 13 '18 at 23:33








  • 1





    Please use a prepared statement; you're open to sql injection.

    – Funk Forty Niner
    Nov 13 '18 at 23:33






  • 1





    Didn't get what?

    – Funk Forty Niner
    Nov 13 '18 at 23:35








1




1





Please edit your question to include the source code how you create the password hash and store it in the database. Also, include the CREATE TABLE statement of your users table, the password column might not be big enough for the hash to store.

– Progman
Nov 13 '18 at 23:27





Please edit your question to include the source code how you create the password hash and store it in the database. Also, include the CREATE TABLE statement of your users table, the password column might not be big enough for the hash to store.

– Progman
Nov 13 '18 at 23:27




1




1





what is the password column's length? I'm betting it's not long enough to accomodate the (full) hash.

– Funk Forty Niner
Nov 13 '18 at 23:27







what is the password column's length? I'm betting it's not long enough to accomodate the (full) hash.

– Funk Forty Niner
Nov 13 '18 at 23:27






1




1





Seeing the above comment; I added another duplicate. Enable error reporting.

– Funk Forty Niner
Nov 13 '18 at 23:33







Seeing the above comment; I added another duplicate. Enable error reporting.

– Funk Forty Niner
Nov 13 '18 at 23:33






1




1





Please use a prepared statement; you're open to sql injection.

– Funk Forty Niner
Nov 13 '18 at 23:33





Please use a prepared statement; you're open to sql injection.

– Funk Forty Niner
Nov 13 '18 at 23:33




1




1





Didn't get what?

– Funk Forty Niner
Nov 13 '18 at 23:35





Didn't get what?

– Funk Forty Niner
Nov 13 '18 at 23:35












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