--TEST-- Test array_merge() function : error conditions - Pass incorrect number of args --FILE-- <?php /* Prototype : array array_merge(array $arr1, array $arr2 [, array $...]) * Description: Merges elements from passed arrays into one array * Source code: ext/standard/array.c */ /* * Pass incorrect number of arguments to array_merge() to test behaviour */ echo "*** Testing array_merge() : error conditions ***\n"; // Testing array_merge with zero arguments echo "\n-- Testing array_merge() function with less than expected no. of arguments --\n"; $arr1 = array(1, 2); var_dump( array_merge() ); echo "Done"; ?> --EXPECTF-- *** Testing array_merge() : error conditions *** -- Testing array_merge() function with less than expected no. of arguments -- Warning: array_merge() expects at least 1 parameter, 0 given in %s on line %d NULL Done