select all not working in mysql - php

Question

pls i tried to display all content in a database, it keeps dispaying the last inserted, kindy help out.
<?php
include 'database/condb.php';
$query = mysql_query("SELECT * FROM posts ");
while($row = mysql_fetch_assoc($query)){
$id = $row["id"];
$username = $row["username"];
$body = $row["body"];
$date_added = $row ["date_added"];
$hasttags= $row["hashtags"];
?>
<?php
}
?>
<?php
echo $id;
echo $body;
?>

Answer 1

Either print the values in while loop or store them in an array to print them outside the loop.
while($row = mysql_fetch_assoc($query)){
echo $row["id"];
echo $row["body"];
}

Answer 2

condb.php
<?php
$con = mysqli_connect("localhost","username","password","databasename");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
?>
index.php
<?php
include 'database/condb.php';
$query = "SELECT * FROM posts";
$res = mysqli_query($con, $query);
while($row = mysqli_fetch_assoc($res)){
$id = $row["id"];
$username = $row["username"];
$body = $row["body"];
$date_added = $row ["date_added"];
$hasttags= $row["hashtags"];
echo $id;
echo $body;
}
?>

Answer 3

For storing data, sometimes using array becomes helpful. I usually recommend it:
<?php
include 'database/condb.php';
$query = mysql_query("SELECT * FROM posts");
$array = [];
while($row = mysql_fetch_assoc($query)){
$id = $row["id"];
$username = $row["username"];
$body = $row["body"];
$date_added = $row ["date_added"];
$hasttags = $row["hashtags"];
$array[$id] = ['username'=>$username, 'body'=>$body, 'date_added'=>$date_added, 'hasttags'=>$hasttags];
}
?>
<?php
foreach($array as $id => $value){
echo $id; //Prints id
echo "<br>";
echo $value['username'].", ".$value['body'].", ".$value['date_added'].", ".$value['hasttags'];
}
?>
Or you can simply do this:
<?php
include 'database/condb.php';
$query = mysql_query("SELECT * FROM posts");
$array = [];
while($row = mysql_fetch_assoc($query)){
$id = $row["id"];
$username = $row["username"];
$body = $row["body"];
$date_added = $row ["date_added"];
$hasttags = $row["hashtags"];
?>
<?php
echo $id.", ".$username.", ".$body.", ".$date_added.", ".$hasttags;
}
?>

Answer 4

<?php
include 'database/condb.php';
$query = mysql_query("SELECT * FROM posts ");
while($row = mysql_fetch_assoc($query)){
$id = $row["id"];
$username = $row["username"];
$body = $row["body"];
$date_added = $row ["date_added"];
$hasttags= $row["hashtags"];
echo $id;
echo "<br>";
echo $body;
?>
<?php
}
?>

Answer 5

As an answer to the question "pls i tried to display all content in a database, it keeps dispaying the last inserted, kindy help out."
Put echo $id, echo $body be inside the loop.