简单的例子,我有以下用于计算的辅助接口(interface):
interface Calculation
{
public function calculate();
}
还有几个实现这个接口(interface)的类:
class One implements Calculation
{
public function calculate()
{
return some calculation;
}
}
class Two implements Calculation
{
public function calculate()
{
return some different calculation;
}
}
// and so on..
现在,在我看来,我有下面显示的代码,但我希望能够摆脱此处的 if。我希望能够做类似的事情:
foreach($units as $unit)
{
$total = (new \App\Helpers\{$unit})->calculate();
}
我该怎么做?
foreach($units as $unit)
{
if($unit === 'One')
{
$total = (new \App\Helpers\One)->calculate();
}
if($unit === 'Two')
{
$total = (new \App\Helpers\Two)->calculate();
}
if($unit === 'Three')
{
$total = (new \App\Helpers\Three)->calculate();
}
if($unit === 'Four')
{
$total = (new \App\Helpers\Four)->calculate();
}
// and so on..
}
最佳答案
试试这段代码:
foreach($units as $unit)
{
$class="\\App\\Helpers\\".$unit;
$total=(new $class)->calculate();
}
关于php - Laravel 助手接口(interface),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/35253161/