Data type coercion method

1. PHP development involves the conversion of data types in many places, especially the data types involving amounts. They must be converted into float types, otherwise there may be errors due to different data types when entering the database. Overwrite the previous amount. (Adding string and float types)

2. Data type forced conversion: forced conversion to float type.

 'total_sum' =>(float)number_format($jmoney,2),
 'reward_sum'=>(float)number_format($jmoney,2),

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