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--TEST-- Test array_chunk() function : basic functionality - defualt 'preserve_keys' --FILE-- <?php /* Prototype : array array_chunk(array $array, int $size [, bool $preserve_keys]) * Description: Split array into chunks * Chunks an array into size large chunks. * Source code: ext/standard/array.c */ echo "*** Testing array_chunk() : basic functionality ***\n"; $size = 2; $input_arrays = array ( // array with default keys - numeric values array(1, 2, 3, 4, 5), // array with default keys - string values array('value1', "value2", "value3"), // associative arrays - key as string array('key1' => 1, "key2" => 2, "key3" => 3), // associative arrays - key as numeric array(1 => 'one', 2 => "two", 3 => "three"), // array containing elements with/witout keys array(1 => 'one','two', 3 => 'three', 4, "five" => 5) ); $count = 1; // loop through each element of the array for input foreach ($input_arrays as $input_array){ echo "\n-- Iteration $count --\n"; var_dump( array_chunk($input_array, $size) ); $count++; } echo "Done" ?> --EXPECTF-- *** Testing array_chunk() : basic functionality *** -- Iteration 1 -- array(3) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } [1]=> array(2) { [0]=> int(3) [1]=> int(4) } [2]=> array(1) { [0]=> int(5) } } -- Iteration 2 -- array(2) { [0]=> array(2) { [0]=> string(6) "value1" [1]=> string(6) "value2" } [1]=> array(1) { [0]=> string(6) "value3" } } -- Iteration 3 -- array(2) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } [1]=> array(1) { [0]=> int(3) } } -- Iteration 4 -- array(2) { [0]=> array(2) { [0]=> string(3) "one" [1]=> string(3) "two" } [1]=> array(1) { [0]=> string(5) "three" } } -- Iteration 5 -- array(3) { [0]=> array(2) { [0]=> string(3) "one" [1]=> string(3) "two" } [1]=> array(2) { [0]=> string(5) "three" [1]=> int(4) } [2]=> array(1) { [0]=> int(5) } } Done