Differences between passing parameters in PHP and passing Parameters

Source: Internet
Author: User

Differences between passing parameters in PHP and passing Parameters

Let's talk about the code.

Function test (& val) {return $ val ;}

What are the advantages of using & for parameter passing?

Address Transfer allows changes within the function, for example:

$ Test = "hello"; function myFun (& $ val) {$ val = "hello world"; return $ val;} echo myFun (& $ test ); // hello worldecho $ test; // hello world

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