打印縱向和橫向的頭

Question

我有兩個數組：

$array1 = array(1,2,3,4,7,6); 
$array2 = array(2,3,1,0,5); 

然後我試圖創建printTable功能打印乘法表數組：

function printTable($array1, $array2) { 
    echo "<table border=1px>"; 
    foreach ($array2 as $vert_head) { 
    echo "<tr>"; 
    foreach ($array1 as $hor_head) { 
     echo "<td>". ($vert_head * $hor_head) ."</td>"; 
    } 
    echo "</tr>"; 
    } 
    echo "</table>"; 
} 

，然後打印表格：

$data = printTable($array1, $array2); 

它工作正常表是打印。但是，我怎樣才能從數組中添加水平和垂直標題？

那我的表怎麼看現在（只是答案）：

2 | 4 | 6 | 8 | 14 | 12 | 
3 | 6 | 9 | 12 | 21 | 18 | 
1 | 2 | 3 | 4 | 7 | 6 | 
0 | 0 | 0 | 0 | 0 | 0 | 
5 | 10 | 15 | 20 | 35 | 30 | 

如何添加標題：

| | 1 | 2 | 3 | 4 | 7 | 6 | 
+---+---+----+----+----+----+----+ 
| 2 | 2 | 4 | 6 | 8 | 14 | 12 | 
| 3 | 3 | 6 | 9 | 12 | 21 | 18 | 
| 1 | 1 | 2 | 3 | 4 | 7 | 6 | 
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 
| 5 | 5 | 10 | 15 | 20 | 35 | 30 | 

Answer 1

我已經包含了代替修改代碼的註釋。它使用和額外的foreach循環來打印標題。

<?php 

$array1 = array(1,2,3,4,7,6); 
$array2 = array(2,3,1,0,5); 

function printTable($array1, $array2) { 
    echo "<table border=1px>"; 

    /* In our table first cell is empty. So put a blank cell here. */ 
    echo '<tr><td></td>' ; 

    /* Then print all headers in following cells */ 
    foreach($array1 as $head) { 
    echo '<th>' . $head . '</th>' ; 
    } 
    /* close the first row */ 
    echo '</tr>'; 

    foreach ($array2 as $vert_head) { 
    echo "<tr>"; 

    /* Before printing each row, print the left heading */ 
    echo '<td>' . $vert_head . '</td>' ; 

    foreach ($array1 as $hor_head) { 
     echo "<td>". ($vert_head * $hor_head) ."</td>"; 
    } 
    echo "</tr>"; 
    } 
    echo "</table>"; 
} 

Answer 2

嘗試以下操作：

<?php 
$array1 = array(1,2,3,4,7,6); 
$array2 = array(2,3,1,0,5); 
function printTable($array1, $array2) { 
    echo "<table border=1px>"; 
    echo "<thead><tr><td></td>"; 
    echo "<th>" . implode("</th><th>", $array1) . "</th>"; 
    echo "</tr></thead><tbody>"; 
    foreach ($array2 as $vert_head) { 
    echo "<tr>"; 
    foreach ($array1 as $hor_head) { 
     echo "<td>". ($vert_head * $hor_head) ."</td>"; 
    } 
    echo "</tr>"; 
    } 
    echo "</tbody></table>"; 
} 

printTable($array1, $array2); 

它使用implode()將$array1轉換爲表標題。

Answer 3

你也可以試試這種方式。這是與您現有的代碼

$array1 = array(1,2,3,4,7,6); 
$array2 = array(2,3,1,0,5); 
function printTable($array1, $array2) { 
    echo "<table border='1px' style='text-align:right'>"; 
    echo '<tr><td></td>' ; 
    foreach($array1 as $head) { 
    echo '<td>' . $head . '</td>' ; 
    } 
    echo '</tr>'; 
    foreach ($array2 as $vert_head) { 
    echo "<tr>"; 
    echo '<td>' . $vert_head . '</td>' ; 
    foreach ($array1 as $hor_head) { 
     echo "<td>". ($vert_head * $hor_head) ."</td>"; 
    } 
    echo "</tr>"; 
    } 
    echo "</table>"; 
} 
$data = printTable($array1, $array2);