PHP MySQL Select Data Using In Page – The following example selects the id, firstname and lastname columns from the MyGuests table and displays it on the page:
Select Data From a MySQL Database
The SELECT statement is used to select data from one or more tables:
SELECT column_name(s) FROM table_name or we can use the * character to select ALL columns from a table
SELECT * FROM table_name
Example (MySQLi Object-oriented)
<?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, firstname, lastname FROM MyGuests";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " . $row["lastname"]. "<br>";
}
} else {
echo "0 results";
}
$conn->close();
?>
Code lines to explain from the example above:
First, we set up an SQL query that selects the id, firstname and lastname columns from the MyGuests table. The next line of code runs the query and puts the resulting data into a variable called $result.