Question

我有一个二维数组，如下所示： -

$variables = array(
           "firstname" => "Sachin",
           "lastname" => "Tendulkar",
           "course" => array(
                         0 => "PHP",
                         1 => "HTML",
                         2 => "CSS",
                         3 => "Javascript"
                 )
          );

我想破坏＆＃34; $变量＆＃34;数组，只获取＆＃34;课程＆＃34;中存在的值列表在用逗号分隔的变量中。是否可以使用array_column（）？这样的事情不起作用： -

$string = implode("," , array_column($variables,'course');
echo $string; //gives no output
var_dump($string); //gives string '' (length=0)

Answer 1

不只是直接访问它们：

$variables = array(
    "firstname" => "Sachin",
    "lastname" => "Tendulkar",
    "course" => array(
         0 => "PHP",
         1 => "HTML",
         2 => "CSS",
         3 => "Javascript"
     )
);

$courses = implode(', ', $variables['course']); // point it directly on the desired array
echo $courses; // PHP, HTML, CSS, Javascript

Answer 2

$string = implode(',', $variables['course']);

Answer 3

只需将其指向您想要内爆的数组即可完全内爆。以下是您的代码应如何显示

$variables = array(
           "firstname" => "Sachin",
           "lastname" => "Tendulkar",
           "course" => array(
                         0 => "PHP",
                         1 => "HTML",
                         2 => "CSS",
                         3 => "Javascript"
                 )
          );


$string = implode(',', $variables['course']);

echo $string; //gives output
var_dump($string); //gives string

希望这有助于你

如何破坏二维数组

3 个答案: