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|
--TEST--
Test uasort() function : basic functionality
--FILE--
<?php
/* Prototype : bool uasort(array $array_arg, string $cmp_function)
* Description: Sort an array with a user-defined comparison function and maintain index association
* Source code: ext/standard/array.c
*/
echo "*** Testing uasort() : basic functionality ***\n";
// comparison function
/* Prototype : int cmp(mixed $value1, mixed $value2)
* Parameters : $value1 and $value2 - values to be compared
* Return value : 0 - if both values are same
* 1 - if value1 is greater than value2
* -1 - if value1 is less than value2
* Description : compares value1 and value2
*/
function cmp($value1, $value2)
{
if($value1 == $value2) {
return 0;
}
else if($value1 > $value2) {
return 1;
}
else
return -1;
}
// Int array with default keys
$int_values = array(1, 8, 9, 3, 2, 6, 7);
echo "-- Numeric array with default keys --\n";
var_dump( uasort($int_values, 'cmp') );
var_dump($int_values);
// String array with default keys
$string_values = array("This", "is", 'a', "test");
echo "-- String array with default keys --\n";
var_dump( uasort($string_values, 'cmp') );
var_dump($string_values);
// Associative array with numeric keys
$numeric_key_arg = array(1=> 1, 2 => 2, 3 => 7, 5 => 4, 4 => 9);
echo "-- Associative array with numeric keys --\n";
var_dump( uasort($numeric_key_arg, 'cmp') );
var_dump($numeric_key_arg);
// Associative array with string keys
$string_key_arg = array('one' => 4, 'two' => 2, 'three' => 1, 'four' => 10);
echo "-- Associative array with string keys --\n";
var_dump( uasort($string_key_arg, 'cmp') );
var_dump($string_key_arg);
echo "Done"
?>
--EXPECTF--
*** Testing uasort() : basic functionality ***
-- Numeric array with default keys --
bool(true)
array(7) {
[0]=>
int(1)
[4]=>
int(2)
[3]=>
int(3)
[5]=>
int(6)
[6]=>
int(7)
[1]=>
int(8)
[2]=>
int(9)
}
-- String array with default keys --
bool(true)
array(4) {
[0]=>
string(4) "This"
[2]=>
string(1) "a"
[1]=>
string(2) "is"
[3]=>
string(4) "test"
}
-- Associative array with numeric keys --
bool(true)
array(5) {
[1]=>
int(1)
[2]=>
int(2)
[5]=>
int(4)
[3]=>
int(7)
[4]=>
int(9)
}
-- Associative array with string keys --
bool(true)
array(4) {
["three"]=>
int(1)
["two"]=>
int(2)
["one"]=>
int(4)
["four"]=>
int(10)
}
Done
|
