1--TEST-- 2Test array_reduce() function : variation 3--FILE-- 4<?php 5/* Prototype : mixed array_reduce(array input, mixed callback [, int initial]) 6 * Description: Iteratively reduce the array to a single value via the callback. 7 * Source code: ext/standard/array.c 8 * Alias to functions: 9 */ 10 11echo "*** Testing array_reduce() : variation ***\n"; 12 13 14function oneArg($v) { 15 return $v; 16} 17 18function threeArgs($v, $w, $x) { 19 return $v + $w + $x; 20} 21 22$array = array(1); 23 24echo "\n--- Testing with a callback with too few parameters ---\n"; 25var_dump(array_reduce($array, "oneArg", 2)); 26 27echo "\n--- Testing with a callback with too many parameters ---\n"; 28try { 29 var_dump(array_reduce($array, "threeArgs", 2)); 30} catch (Throwable $e) { 31 echo "Exception: " . $e->getMessage() . "\n"; 32} 33 34?> 35===DONE=== 36--EXPECT-- 37*** Testing array_reduce() : variation *** 38 39--- Testing with a callback with too few parameters --- 40int(2) 41 42--- Testing with a callback with too many parameters --- 43Exception: Too few arguments to function threeArgs(), 2 passed and exactly 3 expected 44===DONE=== 45