public function testLtrim() { $this->eq(s::ltrim(' a '), 'a '); $this->eq(s::ltrim('abcxyzcba', 'abc'), 'xyzcba'); $this->eq(s::ltrim(''), ''); }
public function ltrim($chars = null) { return new self(s::ltrim($this->value, self::unwrap($chars))); }