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--TEST-- Test array_chunk() function : usage variations - unexpected values for 'preserve_keys' --FILE-- <?php /* Prototype : array array_chunk(array $array, int $size [, bool $preserve_keys]) * Description: Split array into chunks * Source code: ext/standard/array.c */ /* * Testing array_chunk() function with unexpected values for 'preserve_keys' */ echo "*** Testing array_chunk() : usage variations ***\n"; // input array $input = array(1, 2); $size = 10; //get an unset variable $unset_var = 10; unset ($unset_var); //array of values to iterate over $values = array( // int data /*1*/ 0, 1, 12345, -2345, // float data /*5*/ 10.5, -10.5, 10.5e10, 10.6E-10, .5, // null data /*10*/ NULL, null, // empty data /*12*/ "", '', // string data /*14*/ "string", 'string', // object data /*16*/ new stdclass(), // undefined data /*17*/ @undefined_var, // unset data /*18*/ @unset_var ); $count = 1; // loop through each element of the array for preserve_keys foreach($values as $value) { echo "\n-- Iteration $count --\n"; var_dump( array_chunk($input, $size, $value) ); $count++; } echo "Done"; ?> --EXPECTF-- *** Testing array_chunk() : usage variations *** -- Iteration 1 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 2 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 3 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 4 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 5 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 6 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 7 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 8 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 9 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 10 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 11 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 12 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 13 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 14 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 15 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 16 -- Warning: array_chunk() expects parameter 3 to be boolean, object given in %s on line %d NULL -- Iteration 17 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } -- Iteration 18 -- array(1) { [0]=> array(2) { [0]=> int(1) [1]=> int(2) } } Done