What is the common mistake in the PHP code provided for updating the counter field in the database?

The common mistake in the provided PHP code is that it is missing the SQL query to update the counter field in the database. To solve this issue, you need to include the SQL UPDATE query in the code to actually update the counter field with the incremented value. 

// Increment the counter field in the database
$counter = 0; // Initialize counter variable
$counter_query = "SELECT counter FROM table_name WHERE id = 1"; // Query to get current counter value
$result = mysqli_query($connection, $counter_query);
$row = mysqli_fetch_assoc($result);
$counter = $row['counter'] + 1; // Increment counter value

$update_query = "UPDATE table_name SET counter = $counter WHERE id = 1"; // Query to update counter field
mysqli_query($connection, $update_query); // Execute update query

Keywords

PHP database update counter field mistake

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