close
<?php
class a{
static function c(){
return new self();
}
static function d(){
return new static();
}
}
class b extends a{}
echo get_class(a::c()); //a
echo get_class(a::d());//a
echo get_class(b::c());//a
echo get_class(b::d());//b
static就是call調用的class
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