how to store mysql select statement inside php variable using mysqli - php

Question

I know this has been asked before but I cant seem to fix my code.
What I need is to run some php code to query mysql using mysqli for a select statement to retrieve my bcrypt hashed pass so I can compare the user input with the user hashed password. NOTE: I have not yet added mysql_real_escape_string to my $POST variables.
I've changed this code a thousand times still cant get it.
Ive even copy and pasted to a new file a simple query script using num_row
and printf($row['pass']); used echo etc..... I've used fetch array ive tried almost everything I've been all via php mysql at php.net w3c.com etc etc is my system broke? Does mysqli have a bug ? and no i dont want to switch to PDO I wont stop til this is fixed and when there is no longer sql injection vulns
Heres my code:
<?php
$conn = new mysqli('localhost', 'root', '', 'social');
if (mysqli_connect_errno())
{
exit("connection failed" . mysqli_connect_error());
}
else
{
echo "connection established";
}
$db=mysqli_select_db( $conn,'social');
if ($_POST && isset($_POST['submit'], $_POST['password'], $_POST['email']))
{
$pass = ($_POST["password"]);
$email =($_POST["email"]);
$bcrypt = password_hash($pass, PASSWORD_BCRYPT, array('cost' => 12));
}
$query = "SELECT `pass` FROM `social` WHERE `email` = 'jargon#jargon'";
$fetcher = mysqli_fetch_assoc($query);
echo $fetcher;
if ($conn->query($fetcher) === TRUE)
{
echo "query has gone through now we need to store the hash<br /> for comparison";
}
else
{
echo "error did not retrieve hash info";
}

Answer 1

$query = "SELECT `pass` FROM `social` WHERE `email` = 'jargon#jargon'";
$fetcher = mysqli_fetch_assoc($query);
Before you can fetch records from the result of the query, you need to actually perform the query. Your code should be
$query = "SELECT `pass` FROM `social` WHERE `email` = 'jargon#jargon'";
$result = $conn->query($query); // This is where the query is executed
$fetcher = $result->fetch_assoc();
Two more points.
First, you don't need to call mysqli_select_db; you've already selected the database in your constructor call, so you only need to call mysqli_select_db if you want to access a different database.
Second, instead of calling mysql_real_escape_string you should look into using prepared statements, which do the same thing and also correctly handle type-matching and quoting.

Answer 2

Try fetching the value from database after executing the query
$query = "SELECT `pass` FROM `social` WHERE `email` = 'jargon#jargon'";
$executedQuery = $conn->query($query);
if($executedQuery) {
$fetcher = mysqli_fetch_assoc($executedQuery);
echo "query has gone through ---------";
} else {
echo "error did not retrieve hash info";
}

Answer 3

$query = "SELECT pass FROM social WHERE id = 11"; // took the (``) out of the query and added this im assuming the value is stored in the $row variable and I may be able to use $row with the user input to verify hash via bcrypt!!!
$result = $conn->query($query);
while($row = mysqli_fetch_array($result))
{
echo $row['pass'];
echo "<br />";
}