<?php
interface test1{
public function test_11(int $val=1);
public function test_12(string $val="000");
}
class demo implements test1{
public function demo1(int $val=0){
return $this->test_11($val);
}
public function test_11(int $val=1){
return $val;
}
public function test_12(string $val=""){
return $val;
}
}
$demo = new demo();
print $demo->demo1(111);
