The first piece of code doesn't. In each iteration, a reference
to an outer
$variable is taken, and stored in
the innter
$variable. But the space for this
variable is reused in the next iteration - it went out of
scope at the end of the previous iteration.
As for the second one, it depends. What else is there in the
code? Each object created my this constructor will have two
references to itself, so unless there's code to remove the
self referentials, the objects will not be garbage collected
before the end of the program. But that in itself isn't necessarely
a memory leak.
Abigail
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