A PHP version of the lambda implementation ____php

There are some flaws, but the lambda definition of the natural number of church can be realized

Class Lambda {private $f;
    Private $args;
    Private $count;
            Public function __construct ($f, $args = []) {if ($f instanceof Lambda) {$this->f = $f->f;
            $this->count = $f->count;
        $this->args = Array_merge ($f->args, $args);
            else {$this->f = $f;
            $this->count = count (new Reflectionfunction ($f))->getparameters ());
        $this->args = $args;
            The Public Function __invoke () {if (count ($this->args) + Func_num_args () < $this->count) {
        return new Lambda ($this, Func_get_args ());
            else {$args = Array_merge ($this->args, Func_get_args ());
            $r = Call_user_func_array ($this->f, Array_splice ($args, 0, $this->count)); Return is_callable ($r)?
        Call_user_func (New Lambda ($r, $args)): $r;
}} function lambda ($f) {return new lambda ($f);}
$int 1 = lambda (function ($f, $x) {return $f ($x);});

$successor = lambda (function ($p, $f, $x) {return $f ($p ($f, $x));

$add = lambda (function ($p, $q, $f, $x) {return $p ($f, $q ($f, $x));

$mul = lambda (function ($p, $q, $x) {return $p ($q ($x));

$exp = lambda (function ($m, $n) {return $n ($m);});
$int 2 = $successor ($int 1);
$int 3 = $add ($int 1, $int 2);
$int 4 = $mul ($int 2, $int 2);
$int 5 = $add ($int 2, $int 3);
$int 6 = $mul ($int 3, $int 2);
$int 7 = $add ($int 3, $int 4);
$int 8 = $exp ($int 2, $int 3);

$int 9 = $exp ($int 3, $int 2);
    function P ($num) {echo $num (function ($v) {return $v + 1; }, 0).
"\ n";
P ($int 1);
P ($int 2);
P ($int 3);
P ($int 4);
P ($int 5);
P ($int 6);
P ($int 7);
P ($int 8); P ($int 9);