How can PHP developers ensure proper alignment and font size in table cells?

To ensure proper alignment and font size in table cells, PHP developers can use inline CSS styles within the HTML table tags. By setting the "text-align" property for alignment and the "font-size" property for font size, developers can control the appearance of the table cells.

echo '<table>';
echo '<tr>';
echo '<td style="text-align: center; font-size: 14px;">Cell 1</td>';
echo '<td style="text-align: left; font-size: 12px;">Cell 2</td>';
echo '</tr>';
echo '</table>';