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                            為什么php7性能提升了兩倍

1.變量存儲字節減小，減少內存占用，提升變量操作速度
2.改善數組結構
3.改進了函數的調用機制

增加了結合比較運算符 (<=>)

增加了標量類型聲明、返回類型聲明

try...catch 增加多條件判斷，更多 Error 錯誤可以進行異常處理
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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