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                            標量類型聲明

返回值類型聲明

語法糖：null合并運算符，太空船操作符

define允許定義常量數組，

匿名類，

新增了一些函數intdiv()，隨機函數，

?  

**1、php7.0相比于php5.6的新特性**

?  

參考：http://php.net/manual/zh/migration70.new-features.php

?  

**2、php7.1相對于php7.0的新特性**

?  

參考：http://php.net/manual/zh/migration71.new-features.php

?  

**3、php7.2相對于php7.1的新特性**

?  

參考：http://php.net/manual/zh/migration72.new-features.php
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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