What potential challenges may arise when styling tables in PHP to maintain consistent size and layout?

One potential challenge when styling tables in PHP to maintain consistent size and layout is ensuring that the content within each cell does not cause the table to expand or contract unpredictably. To address this issue, you can set fixed widths for the table and its cells, as well as utilize CSS styles to control the appearance of the table.

echo '<table style="width: 100%;">';
echo '<tr>';
echo '<th style="width: 25%;">Header 1</th>';
echo '<th style="width: 25%;">Header 2</th>';
echo '<th style="width: 50%;">Header 3</th>';
echo '</tr>';
echo '<tr>';
echo '<td style="width: 25%;">Data 1</td>';
echo '<td style="width: 25%;">Data 2</td>';
echo '<td style="width: 50%;">Data 3</td>';
echo '</tr>';
echo '</table>';