本文整理匯總了PHP中Cake\Collection\Collection::isEmpty方法的典型用法代碼示例。如果您正苦於以下問題：PHP Collection::isEmpty方法的具體用法？PHP Collection::isEmpty怎麽用？PHP Collection::isEmpty使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類Cake\Collection\Collection的用法示例。
在下文中一共展示了Collection::isEmpty方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的PHP代碼示例。
示例1: testIsEmptyDoesNotConsume
/**
* Tests the isEmpty() method does not consume data
* from buffered iterators.
*
* @return void
*/
public function testIsEmptyDoesNotConsume()
{
$array = new \ArrayIterator([1, 2, 3]);
$inner = new \Cake\Collection\Iterator\BufferedIterator($array);
$collection = new Collection($inner);
$this->assertFalse($collection->isEmpty());
$this->assertCount(3, $collection->toArray());
}示例2: testIsEmpty
/**
* Tests the isEmpty() method
*
* @return void
*/
public function testIsEmpty()
{
$collection = new Collection([1, 2, 3]);
$this->assertFalse($collection->isEmpty());
$collection = $collection->map(function () {
return null;
});
$this->assertFalse($collection->isEmpty());
$collection = $collection->filter();
$this->assertTrue($collection->isEmpty());
}