1--TEST-- 2Test uasort() function : basic functionality 3--FILE-- 4<?php 5echo "*** Testing uasort() : basic functionality ***\n"; 6 7// comparison function 8function cmp($value1, $value2) 9{ 10 if($value1 == $value2) { 11 return 0; 12 } 13 else if($value1 > $value2) { 14 return 1; 15 } 16 else 17 return -1; 18} 19 20// Int array with default keys 21$int_values = array(1, 8, 9, 3, 2, 6, 7); 22echo "-- Numeric array with default keys --\n"; 23var_dump( uasort($int_values, 'cmp') ); 24var_dump($int_values); 25 26// String array with default keys 27$string_values = array("This", "is", 'a', "test"); 28echo "-- String array with default keys --\n"; 29var_dump( uasort($string_values, 'cmp') ); 30var_dump($string_values); 31 32// Associative array with numeric keys 33$numeric_key_arg = array(1=> 1, 2 => 2, 3 => 7, 5 => 4, 4 => 9); 34echo "-- Associative array with numeric keys --\n"; 35var_dump( uasort($numeric_key_arg, 'cmp') ); 36var_dump($numeric_key_arg); 37 38// Associative array with string keys 39$string_key_arg = array('one' => 4, 'two' => 2, 'three' => 1, 'four' => 10); 40echo "-- Associative array with string keys --\n"; 41var_dump( uasort($string_key_arg, 'cmp') ); 42var_dump($string_key_arg); 43 44echo "Done" 45?> 46--EXPECT-- 47*** Testing uasort() : basic functionality *** 48-- Numeric array with default keys -- 49bool(true) 50array(7) { 51 [0]=> 52 int(1) 53 [4]=> 54 int(2) 55 [3]=> 56 int(3) 57 [5]=> 58 int(6) 59 [6]=> 60 int(7) 61 [1]=> 62 int(8) 63 [2]=> 64 int(9) 65} 66-- String array with default keys -- 67bool(true) 68array(4) { 69 [0]=> 70 string(4) "This" 71 [2]=> 72 string(1) "a" 73 [1]=> 74 string(2) "is" 75 [3]=> 76 string(4) "test" 77} 78-- Associative array with numeric keys -- 79bool(true) 80array(5) { 81 [1]=> 82 int(1) 83 [2]=> 84 int(2) 85 [5]=> 86 int(4) 87 [3]=> 88 int(7) 89 [4]=> 90 int(9) 91} 92-- Associative array with string keys -- 93bool(true) 94array(4) { 95 ["three"]=> 96 int(1) 97 ["two"]=> 98 int(2) 99 ["one"]=> 100 int(4) 101 ["four"]=> 102 int(10) 103} 104Done 105