What could be causing the while loop in the PHP code to not display the data from the database as expected?

The issue could be related to the query not returning any results from the database, causing the while loop to not display any data. To solve this, you should check if the query is returning results before trying to loop through them. You can do this by checking the number of rows returned by the query result. 

// Check if the query is returning results before looping through them
if ($result = $mysqli->query("SELECT * FROM table")) {
    if ($result->num_rows > 0) {
        // Loop through the results and display the data
        while ($row = $result->fetch_assoc()) {
            echo $row['column_name'] . "<br>";
        }
    } else {
        echo "No results found.";
    }
} else {
    echo "Error executing query: " . $mysqli->error;
}

Keywords

while loop PHP code database data display error

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