Description:
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Sometimes I want to use the list() construct to unpack an array, but I don't know the size of the array. In this case, list() will give me a "Notice: Undefined index ..".

It would be nice if I could specify default values, as in the code below.

Test script:
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<?php

list($a, $b = 'bbb', $c = 'ccc') = array('AAA', 'BBB');
print "$a, $b, $c";

// Output: "AAA, BBB, ccc".