What are some best practices for structuring PHP code to handle counting and displaying unique entries in a database table?
When handling counting and displaying unique entries in a database table, it is important to use SQL queries to retrieve distinct values and then count them accordingly. One approach is to use the GROUP BY clause in SQL to group the entries by a specific column and then use the COUNT() function to get the count of unique entries. Finally, you can loop through the results and display the unique entries along with their counts.
// Assuming $conn is your database connection
// SQL query to retrieve distinct values and their counts
$sql = "SELECT column_name, COUNT(*) as count FROM table_name GROUP BY column_name";
// Execute the query
$result = $conn->query($sql);
// Check if there are any results
if ($result->num_rows > 0) {
// Loop through the results and display unique entries with their counts
while ($row = $result->fetch_assoc()) {
echo $row['column_name'] . " - Count: " . $row['count'] . "<br>";
}
} else {
echo "No unique entries found.";
}