public function testIntersectsBooleanFlag() { $a = ['foo', 'bar']; $b = ['bar', 'baz']; $this->assertTrue(Arr::intersects($a, $b)); $a = 'bar'; $this->assertTrue(Arr::intersects($a, $b)); $a = 'foo'; $this->assertFalse(Arr::intersects($a, $b)); }