What is the purpose of querying a table name in PHP?

Querying a table name in PHP is necessary when you want to retrieve data from a specific table in a database. By querying the table name, you can access the data stored within that table and manipulate it as needed. This is essential for building dynamic web applications that interact with databases. 

<?php
// Connect to the database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// Query the table name
$table_name = "your_table_name";
$sql = "SELECT * FROM $table_name";
$result = $conn->query($sql);

// Use the query result as needed
if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        // Process each row of data
    }
} else {
    echo "0 results";
}

// Close the database connection
$conn->close();
?>

Keywords

PHP querying table name database SQL

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