方法的重載通過__call來實(shí)現(xiàn)，當(dāng)調(diào)用不存在的方法的時(shí)候，將會(huì)轉(zhuǎn)為參數(shù)調(diào)用__call方法，當(dāng)調(diào)用不存在的靜態(tài)方法時(shí)會(huì)使用__callStatic重載。

class?Car?{
????public?$speed?=?0;
????
????public?function?__call($name,?$args)?{
????????if?($name?==?'speedUp')?{
????????????$this->speed?+=?10;
????????}
????}
}
$car?=?new?Car();
$car->speedUp();?//調(diào)用不存在的方法會(huì)使用重載
echo?$car->speed;