高级多维度难度

Question

我试图回显一个数组，但我得到错误，我无法弄清楚。 试图sereval办法改变的代码，我想我最好的输出到目前为止是：

$b = array(
    array("number 1", array(0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0)), 
    array("number 2", array(1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1)), 
    array("number 3", array(0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1)), 
    array("number 4", array(1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0)), 
    array("number 5", array(0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0)), 
    array("number 6", array(0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0)), 
    array("number 7", array(1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 1)), 
    array("number 8", array(0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1)), 
    array("number 9", array(0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1)), 
); 

for ($row=0; $row < count($b); $row++) { 
    echo "<p><b>Answer : </b>".$b[$row][0]."</p>"; 
    for ($col=0; $col < 30; $col++) { 
     echo "<p>".$b[$row][$col]."</p></br>"; 
    } 
} 

这给了我下面的错误：

number 1 number 1 Notice: Array to string conversion in C:\xampp\htdocs\vendoTest\test.php on line 62 Array Notice: Undefined offset: 2 in C:\xampp\htdocs\vendoTest\test.php on line 62

谁能帮助我解决这个问题？

Answer 1

<?php 

$b = array(
    array("number 1", array(0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0)), 
    array("number 2", array(1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1)), 
    array("number 3", array(0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1)), 
    array("number 4", array(1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0)), 
    array("number 5", array(0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0)), 
    array("number 6", array(0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0)), 
    array("number 7", array(1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 1)), 
    array("number 8", array(0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1)), 
    array("number 9", array(0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1)), 
); 

foreach ($b as $answers) 
{ 
    echo "<p><b>Answer : </b>".$answers[0]."</p>"; 
    foreach ($answers[1] as $val) 
    { 
     echo "<p>".$val."</p></br>"; 
    } 
} 

我相信这是你想要的。输出为this操场。

与您的代码的主要问题，从该行茎：

echo "<p>".$b[$row][$col]."</p></br>"; 

的$b[$row]一个例子是这样的：

array("number 1", array(0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0)) 

指数0是答案，而且指数1是实际的数组0和1。所以如果你想循环第二个数组，你需要使用$b[$row][1][$col]。

您的固定代码：

for ($row=0; $row < count($b); $row++) { 
    echo "<p><b>Answer : </b>".$b[$row][0]."</p>"; 
    for ($col=0; $col < 30; $col++) { 
     echo "<p>".$b[$row][1][$col]."</p></br>"; 
    } 
}