How lookup value from a table, using another table - php

Question

I have question about lookup data from a table,...
there is a table that save 4 fields from users : id, name, username, email
I have another table that save 10 more not required fields from users : phone, and...
now I want to lookup the Id from table 1 in table 2 and show the phone number in the table too.
Note : ID is a shared code between table 1 & 2
<?php
$con=mysqli_connect("localhost","blah","blah","blah");
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
// Here is 2 tables
mysqli_query($con, "SET NAMES 'utf8'");
$result = mysqli_query($con,"SELECT * FROM q7fbn_users");
$result2 = mysqli_query($con,"SELECT * FROM q7fbn_user_profiles");
echo "<table border='1', table style='float:center' align='center'>
<tr>
// Here is the table 1 fields
<th>ID</th>
<th>Name</th>
<th>Username</th>
<th>E-mail</th>
// Here is the phone number that i want lookup from table 2
<th>Phone</th>
</tr>";
while($row = mysqli_fetch_array($result))
{
echo "<tr align='center'>";
// Here is the table 1 fields
echo "<td>" . $row['id'] . "</td>";
echo "<td>" . $row['name'] . "</td>";
echo "<td>" . $row['username'] . "</td>";
echo "<td>" . $row['email'] . "</td>";
// Here is the phone number that i want lookup from table 2
echo "<td>" . $row['phone'] . "</td>";
echo "</tr>";
}
echo "</table>";
mysqli_close($con);
?>

Answer 1

Your problem is that, that in your row there will be only the data from the user table, because you are fetching data from the $result only.
You need to join them:
$result = mysqli_query($con, "SELECT * FROM q7fbn_users LEFT JOIN q7fbn_user_profiles ON q7fbn_users.id = q7fbn_user_profiles.userId");
Of course you need to change the q7fbn_user_profiles.userId to your name of your field what conatins your user id in that table.
EDIT:
Based on OP table structure of the profile:
$con = mysqli_connect("localhost", "blah", "blah", "blah");
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
// Here is 2 Database
mysqli_query($con, "SET NAMES 'utf8'");
$sql = "SELECT * FROM q7fbn_users";
$result = mysqli_query($con, $sql);
echo "
<table border='1', table style='float:center' align='center'>
<tr>
<!-- Here is the database 1 fields -->
<th>ID</th>
<th>Name</th>
<th>Username</th>
<th>E-mail</th>
<!-- Here is the phone number that i want lookup from database 1 -->
<th>Phone</th>
</tr>";
while ($row = mysqli_fetch_array($result)) {
//Now you can use the $row['id'] what is the id of the user
//so create another query to get the phonenumber.
$sql = "SELECT profile_value FROM q7fbn_user_profiles"
. " WHERE user_id = ". $row["id"] . ""
. " AND profile_key = 'profile.phone'";
$profileRes = mysql_query($con, $sql);
//Get the phonenumber from the table2
$phoneRow = mysqli_fetch_assoc($profileRes);
//Initialize the phonenumber, maybe there are not phonnumber for this user.
$phoneNumber = '';
if ($phoneRow) {
$phoneNumber = $phoneRow['profile_value'];
}
echo "<tr align='center'>";
// Here is the database 1 fields
echo "<td>" . $row['id'] . "</td>";
echo "<td>" . $row['name'] . "</td>";
echo "<td>" . $row['username'] . "</td>";
echo "<td>" . $row['email'] . "</td>";
// Here is the phone number that i want lookup from database 1
echo "<td>" . $phoneNumber . "</td>";
echo "</tr>";
}
echo "</table>";