Question

有人可以解释我为什么无法从该阵列获取数据？我的回声只返回“数组”。哪里出错了？

<?php
$people = array( 
array("name"=>"Bob","age"=>8,"colour"=>"red"), 
array("name"=>"Greg","age"=>12,"colour"=>"blue"), 
array("name"=>"Andy","age"=>5,"colour"=>"purple")); 


foreach($people as $vperson => $person){ 

    echo $person;

} 
?>

Answer 1

当你说你有一个数组时，你的变量$ person也是一个数组，因此你不能对它做出回应。您可以通过名称＆＃34;年龄，名称和颜色＆＃34;来访问值。

试试这个：

<?php
$people = array( 
array("name"=>"Bob","age"=>8,"colour"=>"red"), 
array("name"=>"Greg","age"=>12,"colour"=>"blue"), 
array("name"=>"Andy","age"=>5,"colour"=>"purple")); 


foreach($people as $vperson => $person){ 

    echo $name = $person['name'];
    echo $age = $person['age'];
    echo $colour = $person['colour'];
    echo "<br>";

} 
?>

Answer 2

因为您的打印数组为echo。

您可以打印数组：

    <?php
    $people = array( 
    array("name"=>"Bob","age"=>8,"colour"=>"red"), 
    array("name"=>"Greg","age"=>12,"colour"=>"blue"), 
    array("name"=>"Andy","age"=>5,"colour"=>"purple")); 
    foreach($people as $vperson => $person){ 
    echo '<pre>';
        print_r($person);
    echo '</pre>';


echo $name = $person['name'];
    echo $age = $person['age'];
    echo $colour = $person['colour'];
    }

Answer 3

使用此按钮显示键和等效值

foreach($people as $pe)
{
  foreach($pe as $key => $person) 
  {
     echo $key.' : '.$person.' </br> ';
  }
}

我的数组在foreach中返回数组

3 个答案: