php用魔术方法__call实现类函数重载

class Templates {
<span style="white-space:pre">	</span>function __call($fun,$argv){
<span style="white-space:pre">	</span>if($fun=="assign"){
<span style="white-space:pre">	</span>if(count($argv)==1){
<span style="white-space:pre">	</span>$this->assign1($argv[0]);
<span style="white-space:pre">	</span>}
elseif(count($argv)==2){
$this->assign2($argv[0],$argv[1]);
}
}
}
//assign函数接受參数
function assign2($key,$value){
if(isset($key)&&!empty($value)){
$this->val["$key"]=$value;
}else{
exit("ERROR:请设置变量");
}
}
//重载assign函数接受数组
function assign1($array){
if(!empty($array)){
foreach($array as $key => $value){
$this->val["$key"]=$value;
}
}else{
exit("ERROR:请设置数组");
}
}
}