public function testInteger() { $result = SimpleValidator::integer("-9"); $this->assertEquals(true, $result); $result = SimpleValidator::integer("123456"); $this->assertEquals(true, $result); $result = SimpleValidator::integer("+9"); $this->assertEquals(true, $result); $result = SimpleValidator::integer("9"); $this->assertEquals(true, $result); $result = SimpleValidator::integer("9.1"); $this->assertEquals(false, $result); $result = SimpleValidator::integer("900000000000000000"); $this->assertEquals(false, $result); }