PHP中的洗牌多维数组

我正在用PHP开发一个测验应用程序，在30个问题中，我想向用户展示10个随机问题。使用多维数组，我保存了带有三个选项的问题。无法从数组访问随机结果

$shop = array( array( question => "Q.1. What term describes hardware and software designed to help people with disabilities?", 
                      option1 => "Computer aided development",
                      option2 => "Assistive technology",
                      option3 => "Electronic learning products",
                      option4 => "Specialized support",
                    ),
               array( question => "Q.2. What is the process of simultaneously recording and compressing audio called?", 
                      option1 => "Ripcording",
                      option2 => "Audio filtering",
                      option3 => "Signal processing",
                      option4 => "Encapsulating",
                    ),
               array( question => "Q.4. Select the correct order:", 
                      option1 => "3D video games",
                      option2 => "Virtual reality",
                      option3 => "Hologram",
                      option4 => "4D Max",
                    ),
);

$rand_keys = array_rand($shop,2);

$shop[$rand_keys[0]];

---

如前所述，您的代码运行良好：p

如果要保存结果，只需

$randomQuestion=$shop[$rand_keys[0]]

要访问问题字段，只需执行
$randomQuestion['question']
或
$shop[$rand_keys[0]]['question']

如果您想随机抽取10个问题：

$rand\u keys=array\u rand（$shop，10）

$questions
是包含10个问题的数组

如果你想打印所有的问题

foreach ($questions as $question){
    echo $question['question']. "<br>";
    echo $question['option1']. "<br>";
    echo $question['option2']. "<br>";
    echo $question['option3']. "<br>";
    echo $question['option4']. "<br>";
}

foreach（$questions as$question）{
回音$question['question']。“
”；
回显$question['option1']。“
”；
回声$question['option2']。“
”；
回音$question['option3']。“
”；
回音$question['option4']。“
”；
}
Try
print\r（$shop[$rand\u keys[0]]）检查代码是否正常工作？您有哪些问题
$shop[$rand_keys[0]]是一个数组。您应该能够通过执行
$shop[$rand\u keys[0]]['question']
访问该问题。代码也没有对数组执行任何操作。我猜你想回显它或将结果存储在变量中？@JonTan，我只想保存结果？如何分别保存每个选项？像option1、option2等
$option1=$shop[$rand_keys[0]]['option1']
会做这个诀窍如果我必须保存10个问题我需要做$shop[$rand_keys[0]['question']直到$shop[$rand_keys[9]['question']]@Roger:你可以用
foreach
超过
$rand_keys
。编辑答案，展示你将如何做10个问题。
foreach ($questions as $question){
    echo $question['question']. "<br>";
    echo $question['option1']. "<br>";
    echo $question['option2']. "<br>";
    echo $question['option3']. "<br>";
    echo $question['option4']. "<br>";
}