public function testMbCtypeLower() { $this->assertTrue(mb_ctype_lower('こんにちは世界')); $this->assertTrue(mb_ctype_lower('こんにちは世界-abcabcabc')); $this->assertFalse(mb_ctype_lower('こんにちは世界-abcabcABC')); $this->assertTrue(mb_ctype_lower('hello wørld ∫∫ßß∆˙©ƒßå¬')); $this->assertFalse(mb_ctype_lower('hellÔ wørld ∫∫ßß∆˙©ƒßå¬')); }
/** * Returns true if all the characters in the string are lower-case. * * @return bool */ public function isLower() { return mb_ctype_lower($this->contents, $this->encoding); }