PHP AnimalAbstract::speak示例

示例#1

文件： Dog.php 项目： awd-git/Petshop

 public function speak($word = '')
 {
     if (empty($word)) {
         $word = 'woof';
     }
     return parent::speak($word);
 }

示例#2

文件： Cat.php 项目： awd-git/Petshop

 public function speak($word = '')
 {
     if (strlen($word) === 0) {
         $word = 'meow';
     }
     return parent::speak($word);
 }