问使用PHP在HTML表格中显示字母表

EN

// All letters of the alphabet
$alphabet = range('A', 'Z'); // range returns an array

$table = '<table>';

for ($i = 0; $i < count($alphabet); $i++) {

    // Every fourth element start a new table line
    if ($i % 4 == 0)
        $table .= '<tr>';

    $table .= '<td>' . $alphabet[$i] . '</td>';

    // Every fourth element end a table line. Do not forget the last element
    if (($i-3) % 4 == 0 || $i+1 == count($alphabet))
        $table .= '</tr>';
}

$table .= '</table>';

// Do whatever you want with the output string
echo $table;

$string = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
$length = strlen($string);

echo "<table>";

for ($i=0; $i<$length; $i++) {
    if( $i % 4 == 0 ) echo "<tr>";
    echo "<td>".$string[$i]."</td>";
    if( $i % 4 == 3 || $i==$length ) echo "</tr>";
}

echo "</table>";