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Question

我已經試過很多無法從嵌套的數組

在這裏得到的值嵌套數組，並獲得價值只有PHP是數組：

$array = Array (
    Array (20, 21, 22), 
    Array (20, 21, 23), 
    Array (20, 22, 23), 
    Array (21, 22, 23) 
); 

輸出應該像

20 21 22 
20 21 23 
20 22 23 
21 22 23 

請幫忙

Answer 1

$arr = [ 
    [20, 21, 22], 
    [20, 21, 22], 
    [20, 21, 22], 
    [20, 21, 22] 
]; 

foreach ($arr as $row) { 
    echo implode(' ', $row) . '<br />'; 
} 

Answer 2

這段代碼會遍歷數組中的每個頂層元素，爲每個外部數組元素放置行元素。

<table> 
<?php foreach ($array as $row): ?> 
    <tr><td><?php echo implode("</td><td>", $row) ?></td></tr> 
<?php endforeach; ?> 
</table> 

Answer 3

function recursion($arr){ 
    foreach($arr as $key => $val){ 
     if (is_array($val)){ 
      recursion($val); 
     } else { 
      print($val." "); 
     } 
    } 
} 

Answer 4

可以使用foreach循環：

$array; // this is your 2d array 
foreach ($array as $k) { 
    $out = ""; 
    foreach ($k as $n) { 
     $out .= $n." "; 
    } 
    print_r($out."\n"); 
} 

Answer 5

最簡單的方法是遍歷與foreach外陣列和內爆內數組：

$array = Array (
    Array (20, 21, 22), 
    Array (20, 21, 23), 
    Array (20, 22, 23), 
    Array (21, 22, 23) 
); 

foreach ($array as $row) { 
    echo implode(" ", $row) . "\n"; 
}