mirror of
https://github.com/php/php-src.git
synced 2024-09-24 03:17:26 +00:00
85 lines
2.3 KiB
PHP
85 lines
2.3 KiB
PHP
--TEST--
|
|
Test usort() function : usage variations - use built in functions as $cmp_function arg
|
|
--FILE--
|
|
<?php
|
|
/* Prototype : bool usort(array $array_arg, string $cmp_function)
|
|
* Description: Sort an array by values using a user-defined comparison function
|
|
* Source code: ext/standard/array.c
|
|
*/
|
|
|
|
/*
|
|
* Test usort() when comparison function is:
|
|
* 1. a built in comparison function
|
|
* 2. a language construct
|
|
*/
|
|
|
|
echo "*** Testing usort() : usage variation ***\n";
|
|
|
|
// Initializing variables
|
|
$array_arg = array("b" => "Banana", "m" => "Mango", "a" => "apple",
|
|
"p" => "Pineapple", "o" => "orange");
|
|
|
|
// Testing library functions as comparison function
|
|
echo "\n-- Testing usort() with built-in 'cmp_function': strcasecmp() --\n";
|
|
$temp_array1 = $array_arg;
|
|
var_dump( usort($temp_array1, 'strcasecmp') );
|
|
var_dump($temp_array1);
|
|
|
|
echo "\n-- Testing usort() with built-in 'cmp_function': strcmp() --\n";
|
|
$temp_array2 = $array_arg;
|
|
var_dump( usort($temp_array2, 'strcmp') );
|
|
var_dump($temp_array2);
|
|
|
|
// Testing with language construct as comparison function
|
|
echo "\n-- Testing usort() with language construct as 'cmp_function' --\n";
|
|
$temp_array3 = $array_arg;
|
|
var_dump( usort($temp_array3, 'echo') );
|
|
|
|
echo "\n-- Testing usort() with language construct as 'cmp_function' --\n";
|
|
$temp_array4 = $array_arg;
|
|
var_dump( usort($temp_array4, 'exit') );
|
|
?>
|
|
===DONE===
|
|
--EXPECTF--
|
|
*** Testing usort() : usage variation ***
|
|
|
|
-- Testing usort() with built-in 'cmp_function': strcasecmp() --
|
|
bool(true)
|
|
array(5) {
|
|
[0]=>
|
|
string(5) "apple"
|
|
[1]=>
|
|
string(6) "Banana"
|
|
[2]=>
|
|
string(5) "Mango"
|
|
[3]=>
|
|
string(6) "orange"
|
|
[4]=>
|
|
string(9) "Pineapple"
|
|
}
|
|
|
|
-- Testing usort() with built-in 'cmp_function': strcmp() --
|
|
bool(true)
|
|
array(5) {
|
|
[0]=>
|
|
string(6) "Banana"
|
|
[1]=>
|
|
string(5) "Mango"
|
|
[2]=>
|
|
string(9) "Pineapple"
|
|
[3]=>
|
|
string(5) "apple"
|
|
[4]=>
|
|
string(6) "orange"
|
|
}
|
|
|
|
-- Testing usort() with language construct as 'cmp_function' --
|
|
|
|
Warning: usort() expects parameter 2 to be a valid callback, function 'echo' not found or invalid function name in %s on line %d
|
|
NULL
|
|
|
|
-- Testing usort() with language construct as 'cmp_function' --
|
|
|
|
Warning: usort() expects parameter 2 to be a valid callback, function 'exit' not found or invalid function name in %s on line %d
|
|
NULL
|
|
===DONE===
|