<?php
    $cols = 10;
    $rows = 10;
        echo "<table border='1'>";
            for($tr=1;$tr<=$rows;$tr++){
                echo "<tr>";
                    for($td=1;$td<=$cols;$td++){
                        echo "<td>" . $tr * $td . "</td>";
                    }
                echo "</tr>";
            }
        echo "</table>";
    ?>