Description:
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When using array_slice on a smaller array, PHP 7.1.4 (untested newer versions) returns a blank array if the size of the array is less than the $length parameter of array_slice

In php 5.6 this was not the case, the function simply returned the entire array if it was shorter.

Surely this must be a bug or are we now meant to count the array to check it's the right size before calling array_slice?

Test script:
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# Basic reproduction test
$array = range(0,10);
$slice = array_slice($array,12); // same with and without the offset parameter!
print_r($slice); // Empty!

$array = range(0.5);
$slice = array_slice($array,3);
print_r($slice); // As expected 3 elements!