What are common mistakes when trying to adjust table column width in PHP?

Common mistakes when trying to adjust table column width in PHP include not setting the width correctly, not accounting for padding and borders, and not using proper CSS styling. To adjust table column width in PHP, you can use inline CSS styling within the HTML table tags or apply a CSS class to the table and define the column widths in an external CSS file.

<?php
// Example of adjusting table column width in PHP
echo '<table style="width: 100%;">';
echo '<tr>';
echo '<th style="width: 30%;">Column 1</th>';
echo '<th style="width: 70%;">Column 2</th>';
echo '</tr>';
echo '<tr>';
echo '<td>Row 1, Cell 1</td>';
echo '<td>Row 1, Cell 2</td>';
echo '</tr>';
echo '<tr>';
echo '<td>Row 2, Cell 1</td>';
echo '<td>Row 2, Cell 2</td>';
echo '</tr>';
echo '</table>';
?>