1--TEST-- 2Test array_diff_key() function : error conditions 3--FILE-- 4<?php 5/* Prototype : array array_diff_key(array arr1, array arr2 [, array ...]) 6 * Description: Returns the entries of arr1 that have keys which are not present in any of the others arguments. 7 * Source code: ext/standard/array.c 8 */ 9 10echo "*** Testing array_diff_key() : error conditions ***\n"; 11 12// Initialise the variables 13$array1 = array('blue' => 1, 'red' => 2, 'green' => 3, 'purple' => 4); 14 15// Testing array_diff_key with one less than the expected number of arguments 16echo "\n-- Testing array_diff_key() function with less than expected no. of arguments --\n"; 17var_dump( array_diff_key($array1) ); 18 19// Testing array_diff_key with no arguments 20echo "\n-- Testing array_diff_key() function with no arguments --\n"; 21var_dump( array_diff_key() ); 22?> 23===DONE=== 24--EXPECTF-- 25*** Testing array_diff_key() : error conditions *** 26 27-- Testing array_diff_key() function with less than expected no. of arguments -- 28 29Warning: array_diff_key(): at least 2 parameters are required, 1 given in %s on line %d 30NULL 31 32-- Testing array_diff_key() function with no arguments -- 33 34Warning: array_diff_key(): at least 2 parameters are required, 0 given in %s on line %d 35NULL 36===DONE=== 37
