By-Reference Assignment Operator

[chinmay.sahoo]

PHP enables you to create variables as aliases for other variables. You can achieve this by using the by-reference assignment operator =&. After a variable aliases another variable, changes to either one of them affects the other.


For example:

$name = "Judy";
$name_alias =& $name;
$name_alias = "Jonathan";
print $name;

The result of this example is

Jonathan

When returning a variable by-reference from a function (covered later in this book), you also need to use the assign by-reference operator to assign the returned variable to a variable:

$retval =& func_that_returns_by_reference();

 

[mikiway93]

thanks very much. I like you