How can PHP be used to display only specific data based on user input or database queries?

To display only specific data based on user input or database queries in PHP, you can use conditional statements to filter the data that is being retrieved from the database or displayed to the user. By using if statements or switch cases, you can control which data is shown based on the user's input or specific conditions. 

// Example code to display specific data based on user input
$user_input = $_GET['filter']; // Assuming user input is passed through a GET parameter

// Query the database to retrieve data based on user input
$query = "SELECT * FROM table_name WHERE column_name = '$user_input'";
$result = mysqli_query($connection, $query);

// Display the retrieved data
while($row = mysqli_fetch_assoc($result)) {
    echo $row['column_name'];
}

Keywords

PHP user input database queries data filtering conditional statements

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