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PHP

Posted by Joshua Hardy
Joshua Hardy
17,317 Points

How to query certain values from a column in a database?

I am trying to do a query on a database. One of the columns on the database is 'category'. I would like to query every message from the database except a certain category. How would I go about this?

Antonio De Rose
Antonio De Rose
20,885 Points
Antonio De Rose
Antonio De Rose
20,885 Points 
/*say for example if you have categories - car, van, plane, train, trucks
and if you do not want trucks*/

select *
from category
where category != "trucks"
Joshua Hardy
Joshua Hardy
17,317 Points

How would that look on the PHP side?

1 Answer

Antonio De Rose
Antonio De Rose
20,885 Points
Antonio De Rose
Antonio De Rose
20,885 Points 
<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} 

$sql = "SELECT id, type, vehicle FROM Categories where category != 'trucks'"
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // output data of each row
    while($row = $result->fetch_assoc()) {
        echo "id: " . $row["id"]. " - Type: " . $row["type"]. " " . $row["vehicle"]. "<br>";
    }
} else {
    echo "0 results";
}
$conn->close();
?>