errors.txt

PHP Strict standards:  Declaration of AB::output() should be compatible with that of A::output() in /tmp/tmp.php on line 18

Strict standards: Declaration of AB::output() should be compatible with that of A::output() in /tmp/tmp.php on line 18

PHP Strict standards:  Declaration of BA::output() should be compatible with that of B::output() in /tmp/tmp.php on line 25

Strict standards: Declaration of BA::output() should be compatible with that of B::output() in /tmp/tmp.php on line 25

PHP Strict standards:  Declaration of CA::output() should be compatible with that of C::output() in /tmp/tmp.php on line 35

Strict standards: Declaration of CA::output() should be compatible with that of C::output() in /tmp/tmp.php on line 35

PHP Strict standards:  Declaration of CB::output() should be compatible with that of C::output() in /tmp/tmp.php on line 38

Strict standards: Declaration of CB::output() should be compatible with that of C::output() in /tmp/tmp.php on line 38

tmp.php

<?php

class A {
	function output() {}
}
class B {
	function output( $par ) {}
}
class C {
	function output( $par = null ) {}
}

class AA extends A {
	function output() {}
}
class AB extends A {
	function output( $par ) {}
}
class AC extends A {
	function output( $par = null ) {}
}

class BA extends B {
	function output() {}
}
class BB extends B {
	function output( $par ) {}
}
class BC extends B {
	function output( $par = null ) {}
}

class CA extends C {
	function output() {}
}
class CB extends C {
	function output( $par ) {}
}
class CC extends C {
	function output( $par = null ) {}
}

foreach ( array( 'A', 'B', 'C' ) as $a ) {
	foreach ( array( 'A', 'B', 'C' ) as $b ) {
		$className = "$a$b";
		$class = new $className();
		$class->output( '' );
	}
}