ReflectionClass::isIterateable
(PHP 5, PHP 7)
ReflectionClass::isIterateable — 检查是否可迭代
描述
public bool ReflectionClass::isIterateable ( void )检查该类是否可迭代。
参数
该函数没有参数。
返回值
成功时返回TRUE或失败时返回FALSE。
例子
示例＃1 ReflectionClass::isIterateable()示例
<?php
class?IteratorClass?implements?Iterator?{
????public?function?__construct()?{?}
????public?function?key()?{?}
????public?function?current()?{?}
????function?next()?{?}
????function?valid()?{?}
????function?rewind()?{?}
}
class?DerivedClass?extends?IteratorClass?{?}
class?NonIterator?{?}
function?dump_iterateable($class)?{
????$reflection?=?new?ReflectionClass($class);
????var_dump($reflection->isIterateable());
}
$classes?=?array("ArrayObject",?"IteratorClass",?"DerivedClass",?"NonIterator");
foreach?($classes?as?$class)?{
????echo?"Is?$class?iterateable??";
????dump_iterateable($class);
}
?>上面的例子将输出：
Is ArrayObject iterateable? bool(true)
Is IteratorClass iterateable? bool(true)
Is DerivedClass iterateable? bool(true)
Is NonIterator iterateable? bool(false)另请参阅
- ReflectionClass::__construct() - 构造一个ReflectionClass
← ReflectionClass::isInternal
ReflectionClass::isSubclassOf →
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