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                            is\_bool()是否布爾  is\_int()是否整形 is\_float()是否浮點 is\_scalar()是否是”標量類型”;

is\_array()是否數組 is\_string()是否字符串 is\_null()是否為null is\_resource()是否資源型

is\_numeric();是否數值 //如果()是一個純數字的字符串那么是true,有英文其他是false


                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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