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方法鏈與可變變量

[英]Method chaining with variable variables

我正在使用的API(Oracle Service Cloud的ConnectPHP)遵循鏈接方法。 例如:

$incident = new Incident();
$incident->CustomFields->c->make = "Same value";
$incident->StatusWithType->Status->ID = 34;
$incident->save();

如果$incident對象的后續屬性是動態生成的,我將如何實現相同的目標? 例如:

$data = array();
$data[0]['parts'] = array('CustomFields', 'c', 'make');
$data[0]['value'] = "Some value";

$data[1]['parts'] = array('StatusWithType', 'Status', 'ID');
$data[1]['value'] = 34;

$incident = new Incident();
foreach($data as $array)
{
   foreach($array['parts'] as $key)
   {  
      // how will I generate 
      // (1) $incident->CustomFields->c->make = $array['value']
      // (2) $incident->StatusWithType->Status->ID = $array['value']
   }
}
$incident->save();

我嘗試了什么

$incident = new Incident();
foreach($data as $array)
{
   $parts = implode('->', $array['parts']);
   $incident->{$parts} = $array['value']; // this doesn't work even though $parts is coming out with the expected pattern because I think it is converting it into a string representation
}
$incident->save();

如果沒有用戶輸入的風險 ,則可以創建所有對象鍵的字符串,並使用eval這樣

$incident = new stdClass();
foreach($data as $key=>$chain){
  $str = "{'".implode("'}->{'",$chain['parts'])."'}";
  eval("@\$incident->$str = '$chain[value]';");
}
print_r($incident);

現場演示: https : //eval.in/923232

輸出為

stdClass Object
(
    [CustomFields] => stdClass Object
        (
            [c] => stdClass Object
                (
                    [make] => Some value
                )

        )

    [StatusWithType] => stdClass Object
        (
            [Status] => stdClass Object
                (
                    [ID] => 34
                )

        )

)

現在您可以輕松地訪問$incident->CustomFields->c->make

@kranthi在技術上是正確的( 在注釋中 ),我給出了實現。

因此,kranthi走在正確的道路上。

$incident = new Incident();
foreach($data as $array)
{
   $this->setDynamicFields($incident, $array['parts'], $array['value']); 
}
$incident->save();

function setDynamicFields($obj, $parts, $value)
{
   if(is_array($parts) && count($parts) == 3)
   {
       $obj->{$parts[0]}->{$parts[1]}->{$parts[2]} = ($parts[0] == 'StatusWithType' ? (int) $value: $value);
   }
}

訣竅是將整個$incident對象作為函數參數傳遞(如果我沒記錯的話,我認為這稱為依賴項注入),然后使用->作為文字而不是駐留在變量內的字符串。

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