How can PHP be used to process and display search results based on user input?

To process and display search results based on user input in PHP, you can use a form to collect the user's search query, then use PHP to retrieve and display the relevant search results from a database or other data source. You can use SQL queries to filter the search results based on the user's input and then format and display the results on the webpage.

<?php
// Check if the search form has been submitted
if(isset($_GET['search_query'])){
    // Sanitize and store the user's search query
    $search_query = htmlspecialchars($_GET['search_query']);

    // Perform a search query on the database
    // Replace 'your_database_table' and 'search_column' with your actual database table and column names
    $sql = "SELECT * FROM your_database_table WHERE search_column LIKE '%$search_query%'";
    // Execute the query and fetch the results

    // Display the search results
    while($row = $results->fetch_assoc()){
        echo $row['search_result_column'] . "<br>";
    }
}
?>

<!-- HTML form to collect user input -->
<form method="GET" action="">
    <input type="text" name="search_query" placeholder="Search...">
    <input type="submit" value="Search">
</form>