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1.1 misho 1: --TEST-- 2: Test array_intersect_ukey() function : usage variation - Passing non-existing function name to callback 3: --FILE-- 4: <?php 5: /* Prototype : array array_intersect_ukey(array arr1, array arr2 [, array ...], callback key_compare_func) 6: * Description: Computes the intersection of arrays using a callback function on the keys for comparison. 7: * Source code: ext/standard/array.c 8: */ 9: 10: echo "*** Testing array_intersect_ukey() : usage variation ***\n"; 11: 12: //Initialise arguments 13: $array1 = array('blue' => 1, 'red' => 2, 'green' => 3, 'purple' => 4); 14: $array2 = array('green' => 5, 'blue' => 6, 'yellow' => 7, 'cyan' => 8); 15: 16: //function name within double quotes 17: var_dump( array_intersect_ukey($array1, $array2, "unknown_function") ); 18: 19: //function name within single quotes 20: var_dump( array_intersect_ukey($array1, $array2, 'unknown_function') ); 21: 22: //function name without quotes 23: var_dump( array_intersect_ukey($array1, $array2, unknown_function) ); 24: ?> 25: ===DONE=== 26: --EXPECTF-- 27: *** Testing array_intersect_ukey() : usage variation *** 28: 29: Warning: array_intersect_ukey() expects parameter 3 to be a valid callback, function 'unknown_function' not found or invalid function name in %s on line %d 30: NULL 31: 32: Warning: array_intersect_ukey() expects parameter 3 to be a valid callback, function 'unknown_function' not found or invalid function name in %s on line %d 33: NULL 34: 35: Notice: Use of undefined constant unknown_function - assumed 'unknown_function' in %s on line %d 36: 37: Warning: array_intersect_ukey() expects parameter 3 to be a valid callback, function 'unknown_function' not found or invalid function name in %s on line %d 38: NULL 39: ===DONE===