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--TEST-- Test array_map() function : usage variations - unexpected values for 'callback' argument --FILE-- <?php /* Prototype : array array_map ( callback $callback , array $arr1 [, array $... ] ) * Description: Applies the callback to the elements of the given arrays * Source code: ext/standard/array.c */ /* * Test array_map() by passing different scalar/nonscalar values in place of $callback */ echo "*** Testing array_map() : unexpected values for 'callback' argument ***\n"; $arr1 = array(1, 2, 3); // get a class class classA { public function __toString() { return "Class A object"; } } // get a resource variable $fp = fopen(__FILE__, "r"); // unexpected values to be passed to $input argument $unexpected_callbacks = array( // int data /*1*/ 0, 1, 12345, -2345, // float data /*5*/ 10.5, -10.5, 12.3456789000e10, 12.3456789000E-10, .5, // boolean data /*10*/ true, false, TRUE, FALSE, // empty data /*14*/ "", '', // array data /*16*/ array(), array(1, 2), array(1, array(2)), // object data /*19*/ new classA(), // resource variable /*20*/ $fp ); // loop through each element of $inputs to check the behavior of array_map for($count = 0; $count < count($unexpected_callbacks); $count++) { echo "\n-- Iteration ".($count + 1)." --"; var_dump( array_map($unexpected_callbacks[$count], $arr1)); }; fclose($fp); echo "Done"; ?> --EXPECTF-- *** Testing array_map() : unexpected values for 'callback' argument *** -- Iteration 1 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL -- Iteration 2 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL -- Iteration 3 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL -- Iteration 4 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL -- Iteration 5 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL -- Iteration 6 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL -- Iteration 7 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL -- Iteration 8 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL -- Iteration 9 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL -- Iteration 10 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL -- Iteration 11 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL -- Iteration 12 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL -- Iteration 13 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL -- Iteration 14 -- Warning: array_map() expects parameter 1 to be a valid callback, function '' not found or invalid function name in %s on line %d NULL -- Iteration 15 -- Warning: array_map() expects parameter 1 to be a valid callback, function '' not found or invalid function name in %s on line %d NULL -- Iteration 16 -- Warning: array_map() expects parameter 1 to be a valid callback, array must have exactly two members in %s on line %d NULL -- Iteration 17 -- Warning: array_map() expects parameter 1 to be a valid callback, first array member is not a valid class name or object in %s on line %d NULL -- Iteration 18 -- Warning: array_map() expects parameter 1 to be a valid callback, first array member is not a valid class name or object in %s on line %d NULL -- Iteration 19 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL -- Iteration 20 -- Warning: array_map() expects parameter 1 to be a valid callback, no array or string given in %s on line %d NULL Done