How to get all values in a certain column with php - php

Question

I need to print out all the usernames of my members in my site as a list, but I don't know how to do it. I tried to use 'mysqli_fetch_array' function to fetch names from username column, but I've been failing. So, please assist me on how I can do this in a most efficient way.
This is my code
$sql = "SELECT username FROM users";
$query = mysqli_query($db_con, $sql);
$array = Array;
while($row = mysqli_fetch_array($query)) {
$array = row[];
}
foreach ($names as $array) {
echo $names;
}
Also I want to format the output, like separating each username by " | "

Answer 1

You are quite close..
$sql = "SELECT username FROM users";
$query = mysqli_query($db_con, $sql);
while($row = mysqli_fetch_assoc($query)) {
echo $row['username'].'|';
}

Answer 2

Couple of things, "Array" should be "array()" and you're doubling up, by assigning array values into an array, results are returned in an array already. Code below should work...
$sql = "SELECT username FROM users";
$query = mysqli_query($db_con, $sql);
$array = mysqli_fetch_array($query));
foreach ($array as $name) {
echo $name["username"] . "|";
}
Looks like you also had your foreach loop round the wrong way

Answer 3

no need to use extra foreach, just do this way-
$sql = "SELECT username FROM users";
$query = mysqli_query($db_con, $sql);
$array = array();
while($row = mysqli_fetch_assoc($query)) {
echo $row["username"] . "|";
}

Answer 4

Don't worry it is really very easy
<?php
//All your preceding code
$sql = "SELECT username FROM users";
$query = mysqli_query($db_con, $sql);
?>
<ul>
<?php
while($row = mysqli_fetch_array($query)) {
echo "<li>" . $row['username'] . "</li>";
}
?>
</ul>