Twig多维数组-无法访问值

如何解决Twig多维数组-无法访问值

我有一个多维数组，但是由于某些原因，我的树枝没有响应数组值。

下面是我的树枝转储

array (size=2)
  0 => 
    object(App\Models\Entities\Strategy\CriticalSuccessFactor)[5]
      private int 'csfId' => int 26
      private iterable 'kpis' => 
        array (size=1)
          0 => 
            object(App\Models\Entities\Strategy\KeyPerformanceIndicator)[10]
              ...
  1 => 
    object(App\Models\Entities\Strategy\CriticalSuccessFactor)[11]
      private int 'csfId' => int 27
      private iterable 'kpis' => 
        array (size=1)
          0 => 
            object(App\Models\Entities\Strategy\KeyPerformanceIndicator)[12]

我确实找到了此链接，但没有回答我的问题。

Multidimensional Array in Twig

下面是我正在使用的数组数据的表示形式

csfs[
    private int 'csfId' => int 26
    
    'kpis' => [
        private int 'kpiId' => int 42
    
        'objectives' => [
          private int 'objectivesId' => int 40
        ]
    ] 
]

当我用细枝输出变量时，我什么也没得到。

这是我的树枝：

{% for csf in csfs %}
    {% for kpi in csf.kpis %}
        <p> kpi ID : {{ kpi.kpiId }}</p>
    {% endfor %}
{% endfor %}

{{csf.csfId}}有效。它会打印ID。

我可以得到第一个数组值没问题。但是我无法访问kpis数组

解决方法

从import pygame class sampler(): def __init__(self): pygame.init() pygame.mixer.init() self.running,self.playing = True,False self.oo,self.oi,self.io,self.ii = False,False,False self.DISPLAY_W,self.DISPLAY_H = 500,500 self.display = pygame.Surface((self.DISPLAY_W,self.DISPLAY_H)) self.window = pygame.display.set_mode(((self.DISPLAY_W,self.DISPLAY_H))) def loop(self): while self.running: self.checkevents() self.play_sound() self.resetkeys() def checkevents(self): for event in pygame.event.get(): if event.type == pygame.QUIT: self.running,self.playing = False,False if event.type == pygame.KEYDOWN: if event.key == pygame.K_1: self.oo = True if event.key == pygame.K_2: self.oi = True if event.key == pygame.K_3: self.io = True if event.key == pygame.K_4: self.ii = True def resetkeys(self): self.oo,False def play_sound(self): s1 = pygame.mixer.Sound('/sounds/s1.wav') s2 = pygame.mixer.Sound('/sounds/s2.wav') s3 = pygame.mixer.Sound('/sounds/s3.wav') s4 = pygame.mixer.Sound('/sounds/s4.wav') if self.oo == True: s1.play() if self.oi == True: s2.play() if self.io == True: s3.play() if self.ii == True: s4.play()``` 的{​​{3}}中可以看到，

为了方便起见，foo.bar在PHP上执行以下操作 层：

twig

Twig还​​支持在PHP上访问项目的特定语法 数组，foo ['bar']：

check if foo is an array and bar a valid element;
if not,and if foo is an object,check that bar is a valid property;
if not,check that bar is a valid method (even if bar is the constructor - use __construct() instead);
if not,check that getBar is a valid method;
if not,check that isBar is a valid method;
if not,check that hasBar is a valid method;
if not,return a null value.

所以您在这里有两个选择：

1. 调整模型check if foo is an array and bar a valid element; if not,return a null value.

您可以将方法CriticalSuccessFactor重命名为getKeyPerformanceIndicators或添加仅引用getKpis的方法getKpis

getKeyPerformanceIndicators

1. 调整模板并直接调用方法public function getKpis() { return $this->getKeyPerformanceIndicators(); } ，而不要让getKeyPerformanceIndicators神奇地确定方法

twig