public function testRStartingWith() { $this->eq(s::rStartingWith('aaxaa', 'x'), 'xaa'); $this->eq(s::rStartingWith('aaxaaxaa', 'x'), 'xaa'); $this->eq(s::rStartingWith('abcdef', 'x'), null); }
public function rStartingWith($char) { return self::_wrap(s::rStartingWith($this->value, self::unwrap($char))); }