PHP 类 - 参数数组内的参数数组[重复]

Question

在下面的代码中我有两个类。我想从 IT_HTML_Content 类获得回显，然后该回显将以参数的形式传递给 IT_HTML_Panel 并移交给其位置，以使用第一类的现有回显执行第二类的回显。这可能吗？这是一个好方法吗？也许我应该使用一个类来扩展另一个类。我想要一些建议。

<?php

class IT_HTML_Panel {
    protected $name;
    protected $surname;
    protected $index;
    
    public function __construct($args) {
        $this->name = $args['name'];
        $this->surname = $args['surname'];
        $this->index = $args['index'];
    }
    
    public function add_node() {
        echo "Name: {$this->name}, Surname: {$this->surname}, Index: {$this->index}";
    }
}

class IT_HTML_Content {
    protected $indexNumber;
    
    public function __construct($args_con) {
        $this->indexNumber = $args_con['indexNumber'];
    }
    
    public function add_node() {
        echo "Index Number: {$this->indexNumber}";
    }
}


$args = array(
    'name' => 'Mickey',
    'surname' => 'Mouse',
    'index' => $args_con = array(
        'indexNumber' => '12345'
    )
);

// Create instances of IT_HTML_Panel and IT_HTML_Content classes with the provided arguments
$it_html_panel = new IT_HTML_Panel($args);
$it_html_content = new IT_HTML_Content($args_con);

// Call the add_node method for both classes to display the values
$it_html_panel->add_node();
$it_html_content->add_node();
?>

Answer 1

我建议您在另一个类中创建第一个类的实例（像我一样在构造函数或方法中）并使用第二个类返回一个字符串，您将在

echo

中使用该字符串。

我想从 IT_HTML_Content 类中得到回显，然后它将是 以参数的形式传递

echo 不能作为参数传递，它只是“打印”到页面

<?php

class IT_HTML_Panel {
    private string $name; // changed to private as this class is not being extended
    private string $surname;
    private string $index;
    
    public function __construct(array $args) {
        $this->name = $args['name'];
        $this->surname = $args['surname'];
        $this->index = $args['index'];
    }
    
    public function add_node(): void {
        $itHtmlContent = new IT_HTML_Content($this->index);
        $index = $itHtmlContent->get_index();
        echo "Name: {$this->name}, Surname: {$this->surname}, Index: {$index}";
    }
}

class IT_HTML_Content {
    private string $indexNumber;
    
    public function __construct(array $args_con) {
        $this->indexNumber = $args_con['indexNumber'];
    }
    
    public function get_index(): string {
        return "Index Number: {$this->indexNumber}";
    }
}


$args = [
    'name' => 'Mickey',
    'surname' => 'Mouse',
    'index' => [
        'indexNumber' => '12345'
    ]
]; // changed array() to [] - https://stackoverflow.com/questions/26651996/php-array-vs-in-method-and-variable-declaration

// Create instances of IT_HTML_Panel class with the provided arguments
$it_html_panel = new IT_HTML_Panel($args);

// Call the add_node method for both classes to display the values
$it_html_panel->add_node();
?>

或者如果你不想返回字符串，你可以这样做：

<?php

class IT_HTML_Panel {
    private string $name; // changed to private as this class is not being extended
    private string $surname;
    private array $index;
    
    public function __construct(array $args) {
        $this->name = $args['name'];
        $this->surname = $args['surname'];
        $this->index = $args['index'];
    }
    
    public function add_node(): void {
        $itHtmlContent = new IT_HTML_Content($this->index);
        echo "Name: {$this->name}, Surname: {$this->surname}, Index: ";
        $itHtmlContent->add_node()
    }
}

class IT_HTML_Content {
    private string $indexNumber;
    
    public function __construct(array $args_con) {
        $this->indexNumber = $args_con['indexNumber'];
    }
    
    public function add_node(): void {
        echo "Index Number: {$this->indexNumber}";
    }
}


$args = [
    'name' => 'Mickey',
    'surname' => 'Mouse',
    'index' => [
        'indexNumber' => '12345'
    ]
]; // changed array() to [] - https://stackoverflow.com/questions/26651996/php-array-vs-in-method-and-variable-declaration

// Create instances of IT_HTML_Panel class with the provided arguments
$it_html_panel = new IT_HTML_Panel($args);

// Call the add_node method for both classes to display the values
$it_html_panel->add_node();
?>

作为旁注，我要补充一点，您似乎正在使用非常古老的 PHP 编写代码（<5.4), so I "updated" the code a little bit by adding types and left comments where I changed something. Applying features of newer PHP versions will help you write more readable code and less bugs.