PHP Interface Development Related

IOS Object C Strong type

Android Java Strong type

WAP JavaScript Weak type

Background php Weak type

Development interface WAP and app sharing

A strongly typed language may require that the returned value be an array to be guaranteed empty when it is ' [] ' is not null and the character is empty when the word is guaranteed to be ' nor null

Attention:

1 Database design field does not allow null NOT NULL

2 function return Data impersonation strong type each function returns only the contract data type and cannot be null

3 Query statement results returned directly to verify that the empty words return the contract type and not directly return the query results

4 A LEFT JOIN joins a table query result filter null or try to use inner join

PHP Interface Development Related