PAL.C.T MINI SHELL
--TEST--
Test uasort() function : basic functionality - duplicate values
--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 with duplicate values ***\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;
}
// increasing values
$int_values1 = array(1, 1, 2, 2, 3, 3);
echo "-- Numeric array with increasing values --\n";
var_dump( uasort($int_values1, 'cmp') );
var_dump($int_values1);
// decreasing values
$int_values2 = array(3, 3, 2, 2, 1, 1);
echo "-- Numeric array with decreasing values --\n";
var_dump( uasort($int_values2, 'cmp') );
var_dump($int_values2);
// increasing and decreasing values
$int_values3 = array(1, 2, 3, 3, 2, 1);
echo "-- Numeric array with increasing and decreasing values --\n";
var_dump( uasort($int_values3, 'cmp') );
var_dump($int_values3);
echo "Done"
?>
--EXPECTF--
*** Testing uasort() : basic functionality with duplicate values ***
-- Numeric array with increasing values --
bool(true)
array(6) {
[0]=>
int(1)
[1]=>
int(1)
[2]=>
int(2)
[3]=>
int(2)
[4]=>
int(3)
[5]=>
int(3)
}
-- Numeric array with decreasing values --
bool(true)
array(6) {
[4]=>
int(1)
[5]=>
int(1)
[2]=>
int(2)
[3]=>
int(2)
[0]=>
int(3)
[1]=>
int(3)
}
-- Numeric array with increasing and decreasing values --
bool(true)
array(6) {
[0]=>
int(1)
[5]=>
int(1)
[1]=>
int(2)
[4]=>
int(2)
[2]=>
int(3)
[3]=>
int(3)
}
Done
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