PHP:访问嵌套数组元素的有效方法？

Question

我正在整理我在工作中遇到的一些旧代码，包括我想将其组合成嵌套数组的各种数组，并且想知道一种循环遍历嵌套数组内容的简单方法(可能首先，有比嵌套数组更好的数据存储方式，如果是这样，欢迎提出建议)。

以下代码只是原始代码结构的示例，其行为方式与一般化输出相同。

$someArray 元素过去是单独定义的，这似乎非常耗时，因此我想更改它:

$fruit['fruit']['apple']['size'] = 'small';
$fruit['fruit']['apple']['colour'] = 'red';
$fruit['fruit']['apple']['taste'] = 'bitter';
$fruit['fruit']['pear']['size'] = 'big';
$fruit['fruit']['pear']['colour'] = 'green';
$fruit['fruit']['pear']['taste'] = 'sweet'; 

这是我正在构建的嵌套数组的示例:

class someEntity 
{
    public function someFunction()
    {       

    $someArray = array
    (
    'apple' => array(
            'size' => 'small',
            'colour' => 'red',
            'taste' => 'bitter'
            ),
    'pear' => array(
            'size' => 'big',
            'colour' => 'green',
            'taste' => 'sweet'
            )
    );
    return($someArray);
    }

    public function anotherFunction()
    {
    # some other stuff
    }

}

通过foreach循环调用:

$someArray= someEntity::someFunction();
var_dump($someArray);


foreach($someArray as $key)
{   
    foreach($key as $key => $value)
    {
    print($key.': '.$value.'<br>');
    }
}


array (size=2)
  'apple' => 
    array (size=3)
      'size' => string 'small' (length=5)
      'colour' => string 'red' (length=3)
      'taste' => string 'bitter' (length=6)
  'pear' => 
    array (size=3)
      'size' => string 'big' (length=3)
      'colour' => string 'green' (length=5)
      'taste' => string 'sweet' (length=5)  

输出:

尺寸:小 颜色:红色 味道:苦 尺寸:大 颜色:绿色 味道:甜

问题:

1. 压缩 $fruits 数组的最佳方法是什么？我的 $someArray 方法不正确吗？
2. 有没有更好的方法来调用 $someArray 数据而不需要嵌套的 foreach 循环？

考虑:

1. 嵌套数组可能会变得更复杂，可能还有一层更深
2. 不想在这种情况下使用数据库

提前致谢

已更新

我使用对象进行了如下修改。

class fruit 
{
    private  $_type;
    private  $_size;            
    private  $_colour;
    private  $_taste;

    public function __construct($type,$size,$colour,$taste)
    {
    $this->_type = $type;
    $this->_size = $size;   
    $this->_colour = $colour;
    $this->_taste = $taste;             
    }

    public function displayFruitData()
    {

           echo'<br>'.$this->_type.'<br>'.$this->_size.'<br>'.$this->_colour.'<br>'.$this->_taste.'<br><br>';       
    }       
}   
    $fruit1 = new fruit("apple","small","red","bitter");
    $fruit2 = new fruit("pear","medium","yellow","sweet");
    $fruit3 = new fruit("pineapple","large","brown","sweet");       

    $output = $fruit1->displayFruitData();  
    $output = $fruit2->displayFruitData();  
    $output = $fruit3->displayFruitData();  


    exit();

Answer 1

你可以像这样简单地做到这一点

<?php
  $fruits = array('apple', 'pear');
  $size = array('apple' => 'small', 'pear' => 'big');
  $colour = array('apple' => 'red', 'pear' => 'green');
  $taste = array('apple' => 'bitter', 'pear' => 'sweet');

  foreach($fruits as $fruit)
  {
    echo "$fruit Size is {$size[$fruit]}<br />";
    echo "$fruit Colour is {$colour[$fruit]}<br />";
    echo "$fruit Taste is {$taste[$fruit]}<br />";
    echo '<br />';
  }
?>

输出

apple Size is small
apple Colour is red
apple Taste is bitter

pear Size is big
pear Colour is green
pear Taste is sweet