java软件工程师学php -11.函数

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Release: 2016-06-13 13:11:34
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java程序员学php -11.函数

public String join(String head, String body){
    if(body == null) body = "Nobody";
    return head + body;
}
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function join(head, body='Nobody'){
    return head.body; 
}
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区别:
  1.php的函数不会在方法签名中指定返回类型
  2.php的函数不会在方法签名中指定参数类型
  3.php的函数可以给参数设定默认值
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