请问一下,PHP是否支持自定义函数在声明时,函数名称采用变量形式,如何使用?
我试过用
function $a{}
$a = 'test';
test();
?>
提示错误。
回复讨论(解决方案)
你那样是不行的
我这样是可以的
function test() {}$a = 'test';$a();
你那样是不行的
我这样是可以的
function test() {}$a = 'test';$a();
问题是我不是想要这样的效果啊……
我碰到的情况是,可能函数名称不一样,但函数的内容是一样的,但又因为特殊原因
在函数声明时,函数名称未知,只有等到实际调用时,才能确定下来。
你可以通过类来实现(__call)
1.使用eval
$a = 'test';eval("function $a(){ echo 'function name is:'.__FUNCTION__;}");test();
2.使用class 的魔术方法__call
class foo{ public function __call($name, $param){ if($name=='test'){ echo 'test'; }else{ echo 'name not exists'; } }}$obj = new foo();$a = 'test';$obj->$a();

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