Question

我希望使用该方法的各种键获得数组格式的值。

类文件

<?php
class Hooks
{

    private $version = '1.4';
    public $hook = array();


    public function __construct(){ }


    public function get_item_hook()
    {
        //bla bla bla
        $this->hook['foo']  = 'resulting data for foo';
        $this->hook['foo1'] = 'resulting data for foo1';
        $this->hook['foo2'] = 'resulting data for foo2';

        return $this->hook;
    }

    public function get_item2_hook()
    {
        //bla bla bla
        $this->hook['another']  = 'resulting data for another';
        $this->hook['another1'] = 'resulting data for another1';
        $this->hook['another2'] = 'resulting data for another2';

        return $this->hook;
    }


}
?>

Code FIle

<?php
// this is in another file

include ('path to above class file');

$hook = new Hooks;
$hook->get_item_hook();

//now how can I get value of $this->hook array()???

$hook->get_item2_hook();

//now how can I get value of $this->hook array()???
?>

Answer 1

调用方法时，您没有捕获返回值。

尝试

$myArray = $hook->get_item_hook();
// ^^ here we store the return value

print_r($myArray);
echo $myArray['foo']; // resulting data for foo

另外，正如bountyh指出的那样，您错过了方法中的function关键字：

public function get_item_hook()
{
    ...
}

如果您打开PHP错误或检查错误日志，您应该会看到此错误：

解析错误：语法错误，意外T_STRING，期待T_VARIABLE ......

要打开错误：

error_reporting(E_ALL);
ini_set('display_errors', '1');

Answer 2

只需将返回值分配给变量：

$item = $hook->get_item_hook();
print_r($item);
$item2 = $hook->get_item2_hook();
print_r($item2);

Answer 3

您尚未将类文件中的＆＃34;函数定义为函数＆＃34;

例如是public function get_item2_hook（）not public get_item2_hook（）

Answer 4

将数组分配给变量？

$array = $hook->get_item_hook();
print_r($array);

PHP：以数组格式返回属性并获取值

4 个答案: