本文介绍了检查属性是否存在的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
是否可以检查是否存在使用魔术师设置的属性?
Is it possible to check if a property exists which are set using magic setter?
class Test
{
private $vars;
public function __set($key, $value) {
$this->vars[$key] = $value;
}
public function &__get($key)
{
return $this->vars[$key];
}
}
$test = new Test;
$test->myvar = 'yay!';
if (magic_isset($test->myvar)) {
}
还是不可能,我只需要在课堂上设置另一个功能?
Or isn't it possible and I just need to setup another function in my class?
推荐答案
public function __isset($key)
{
return isset($this->vars[$key]);
}
$test = new Test;
$test->myvar = 'yay!';
if (isset($test->myvar)) {
}
这篇关于检查属性是否存在的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!