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--TEST-- Test array_slice() function : usage variations - Pass different integers as $offset argument --FILE-- <?php /* Prototype : array array_slice(array $input, int $offset [, int $length [, bool $preserve_keys]]) * Description: Returns elements specified by offset and length * Source code: ext/standard/array.c */ /* * Pass different integers as $offset argument to test how array_slice() behaves */ echo "*** Testing array_slice() : usage variations ***\n"; $input = array ('one' => 1, 2 => 'two', 'three', 9 => 'nine', 'ten' => 10); for ($i = -7; $i <= 7; $i++) { echo "\n-- \$offset is $i --\n"; var_dump(array_slice($input, $i)); } echo "\n-- \$offset is maximum integer value --\n"; var_dump(array_slice($input, PHP_INT_MAX)); echo "\n-- \$offset is minimum integer value --\n"; var_dump(array_slice($input, -PHP_INT_MAX)); echo "Done"; ?> --EXPECTF-- *** Testing array_slice() : usage variations *** -- $offset is -7 -- array(5) { ["one"]=> int(1) [0]=> string(3) "two" [1]=> string(5) "three" [2]=> string(4) "nine" ["ten"]=> int(10) } -- $offset is -6 -- array(5) { ["one"]=> int(1) [0]=> string(3) "two" [1]=> string(5) "three" [2]=> string(4) "nine" ["ten"]=> int(10) } -- $offset is -5 -- array(5) { ["one"]=> int(1) [0]=> string(3) "two" [1]=> string(5) "three" [2]=> string(4) "nine" ["ten"]=> int(10) } -- $offset is -4 -- array(4) { [0]=> string(3) "two" [1]=> string(5) "three" [2]=> string(4) "nine" ["ten"]=> int(10) } -- $offset is -3 -- array(3) { [0]=> string(5) "three" [1]=> string(4) "nine" ["ten"]=> int(10) } -- $offset is -2 -- array(2) { [0]=> string(4) "nine" ["ten"]=> int(10) } -- $offset is -1 -- array(1) { ["ten"]=> int(10) } -- $offset is 0 -- array(5) { ["one"]=> int(1) [0]=> string(3) "two" [1]=> string(5) "three" [2]=> string(4) "nine" ["ten"]=> int(10) } -- $offset is 1 -- array(4) { [0]=> string(3) "two" [1]=> string(5) "three" [2]=> string(4) "nine" ["ten"]=> int(10) } -- $offset is 2 -- array(3) { [0]=> string(5) "three" [1]=> string(4) "nine" ["ten"]=> int(10) } -- $offset is 3 -- array(2) { [0]=> string(4) "nine" ["ten"]=> int(10) } -- $offset is 4 -- array(1) { ["ten"]=> int(10) } -- $offset is 5 -- array(0) { } -- $offset is 6 -- array(0) { } -- $offset is 7 -- array(0) { } -- $offset is maximum integer value -- array(0) { } -- $offset is minimum integer value -- array(5) { ["one"]=> int(1) [0]=> string(3) "two" [1]=> string(5) "three" [2]=> string(4) "nine" ["ten"]=> int(10) } Done