分离嵌套数组并获取值仅php

Question

我已经尝试过很多无法从嵌套数组中获取值

这是数组：

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

输出应该看起来像

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

请帮助

Answer 1

您可以使用foreach循环：

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

Answer 2

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

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

Answer 3

此代码将循环遍历数组的每个顶级元素，并为每个外部数组元素输出行元素。

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

Answer 4

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

Answer 5

最简单的方法是使用foreach遍历外部数组并内嵌数组：

$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";
}