i want to create status and comment system similar to facebook - php

Question

i just want to build comment and status system similar to facebook. when i give a status its show and comment regarding this status its show. but when i give a new status it dose not show.
<?php
// show status.
mysql_connect("localhost","root","");
mysql_select_db("saif");
$sql="select id, st from status ";
$result=mysql_query($sql);
while($row= mysql_fetch_array($result))
{
echo $row['id']. " " .$row['st'];
echo "<br>";
//show comment;
mysql_connect("localhost","root","");
mysql_select_db("saif");
$sql="select com from comment ";
$result=mysql_query($sql);
while($row= mysql_fetch_array($result))
{
echo $row['com'];
echo "<hr>";
}
// end of show comment
//new comment area.
include('textarea.php');
echo "<hr>";
}
?>

Answer 1

Ok, this is my solution:
First I create two tables in my db and I populated them, then I create a connection to my db using MySQLi (MySQL is deprecated).
I SELECTED all the status, and for each status I selected the related comments. To do so, In the comments table I need something to make a relation between status and comments.
Just to understand to which status the comment is related.
First let's create and populate the tables:
SQL:
CREATE TABLE `status` (
`id` int(11) unsigned NOT NULL AUTO_INCREMENT,
`st` text,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
INSERT INTO `status` (`id`, `st`)
VALUES
(1, 'This is the first status in your DB, let\'s say \"Hello World\"'),
(2, 'This is the second status');
CREATE TABLE `comment` (
`id` int(11) unsigned NOT NULL AUTO_INCREMENT,
`id_status` int(11) DEFAULT NULL,
`com` text,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
INSERT INTO `comment` (`id`, `id_status`, `com`)
VALUES
(1, 1, 'This is just a comment to the first status'),
(2, 1, 'This is another comment to the first status'),
(3, 2, 'This is a comment to the second status'),
(4, 1, 'This is the third comment to the first status');
Ok, the php file:
<?php
$con = mysqli_connect("localhost","YourUsername","YourPassword","YourDB");
// Check connection
if (mysqli_connect_errno()) {
echo "Connection error: ".mysqli_connect_error();
exit();
}
$sql = "SELECT * FROM status";
$result = $con->query($sql);
while($row = $result->fetch_array(MYSQLI_ASSOC))
{
echo $row['id']." ".$row['st']."<br>";
//show comment
echo "<ol>";
$id_status = $row['id'];
$query = "SELECT com FROM comment WHERE id_status = $id_status";
$comments = $con->query($query);
while($comment = $comments->fetch_array(MYSQLI_ASSOC))
{
echo "<li>".$comment['com']."</li>";
}
echo "</ol>";
// end of show comment
//new comment area.
include('textarea.php');
echo "<hr>";
}
?>
And this is the result (no text area in my output, cause I didn't have your textarea.php)
I hope this helps.