What are some best practices for filling placeholder cells in a table with PHP when retrieving data from a database?

When retrieving data from a database to populate a table in PHP, it is important to handle cases where the database query returns null or empty values for certain cells. One common approach is to use conditional statements to check for empty values and replace them with placeholders. 

// Sample code snippet to fill placeholder cells in a table with PHP when retrieving data from a database

// Assuming $data is an array of data fetched from the database
foreach ($data as $row) {
    echo "<tr>";
    foreach ($row as $value) {
        if (empty($value)) {
            echo "<td>Placeholder</td>";
        } else {
            echo "<td>$value</td>";
        }
    }
    echo "</tr>";
}

Keywords

SQL database retrieval table cells placeholder PHP functions

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