$result = Strings::trimToNull(' ');
null
public static function trimToNull($string) { $string = trim($string); if (mb_strlen($string) == 0) { return null; } return $string; }
/** * @test */ public function shouldTrimNull() { //given $string = null; //when $result = Strings::trimToNull($string); //then $this->assertNull($result); }