PHP MySQL Order By

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PHP Delete Data from Database String in PHP

Display Record from Database in Decending Order

The order by clause is used to fetch data in ascending order or descending order on the basis of column.

mysqli_query() is used to excecte selected query. In below example variable sql is passed inside mysqli_query(), it means excecute selected query when this function called.

Below query used to select data from user table in ascending order on the basis of user_id column.

Syntax

$sql = "SELECT * FROM  letter_dispatch ORDER BY  user_id"; 

Below query used to select data from user table in descending order on the basis of user_id column.

Syntax

$sql = "SELECT * FROM  letter_dispatch ORDER BY  user_id DESC"; 

connect-db.php

Connect to database

<?php

$server = 'localhost';
$user = 'user_name';
$pass = 'password';
$db = 'database_name';

// Connect to Database

$connection = mysqli_connect($server, $user, $pass)
or die("Could not connect to server ... \n" . mysqli_error ());

// select database
mysqli_select_db($db)
or die("Could not connect to database ... \n" . mysqli_error ());

?>

create-table.php

Create Table in database

<?php

include 'connect-db.php';

$sql = "SELECT * FROM  letter_dispatch ORDER BY  user_id DESC";  
$result = mysqli_query($sql, $connection);

?>

<table>
<tr><th>user_id</th><th>First Name</th><th>Last Name</th></tr>

<?php

if ($result)
 {
  while($row = mysqli_fetch_array($result))
 {
?>

<tr>
<td><?php echo $row["user_id"]; ?></td>
<td><?php echo $row["f_name"]; ?></td>
<td><?php echo $row["l_name"]; ?></td>
</tr>

<?php
 }
} 
?>
</table>

mysqli_close($conn);

?>

Output


PHP Delete Data from Database String in PHP

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