How can PHP be used to filter and display specific data based on user input or session variables?

To filter and display specific data based on user input or session variables in PHP, you can use conditional statements to check the input or session variables and then fetch and display the relevant data from a database or an array. 

// Assuming user input is stored in a variable $user_input and session variables are accessed through $_SESSION

// Check if user input is set
if(isset($user_input)){
    // Filter data based on user input
    $filtered_data = fetchDataBasedOnUserInput($user_input);
    // Display filtered data
    echo $filtered_data;
}

// Check if session variable is set
if(isset($_SESSION['variable_name'])){
    // Filter data based on session variable
    $filtered_data = fetchDataBasedOnSessionVariable($_SESSION['variable_name']);
    // Display filtered data
    echo $filtered_data;
}

Keywords

PHP filtering user input session variables data display

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