PAL.C.T MINI SHELL
--TEST--
Test uasort() function : usage variations - sort array having subarrays
--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
*/
/*
* Testing uasort() with 'array_arg' having different subarrays as array elements
*/
// comparison function
/* Prototype : int cmp_function(mixed $value1, mixed $value2)
* Parameters : $value1 and $value2 - values to be compared
* Return value : 0 - if both values are same
* 1 - if value1 is greater than value2
* -1 - if value1 is less than value2
* Description : compares value1 and value2
*/
function cmp_function($value1, $value2)
{
if($value1 == $value2) {
return 0;
}
else if($value1 > $value2) {
return 1;
}
else {
return -1;
}
}
echo "*** Testing uasort() : sorting array having different subarrays ***\n";
$array_args = array(
0 => array(2, 10, -1),
1 => array(100),
2 => array(),
3 => array(0),
4 => array(-1),
5 => array(-9, 34, 54, 0, 20),
6 => array(''),
7 => array("apple", "Apple", "APPLE", "aPPle", "aPpLe")
);
$temp_array = $array_args;
// sorting array_arg as whole array
var_dump( uasort($temp_array, 'cmp_function') ); // expecting: bool(true)
var_dump($temp_array);
?>
--EXPECTF--
*** Testing uasort() : sorting array having different subarrays ***
bool(true)
array(8) {
[2]=>
array(0) {
}
[4]=>
array(1) {
[0]=>
int(-1)
}
[3]=>
array(1) {
[0]=>
int(0)
}
[6]=>
array(1) {
[0]=>
string(0) ""
}
[1]=>
array(1) {
[0]=>
int(100)
}
[0]=>
array(3) {
[0]=>
int(2)
[1]=>
int(10)
[2]=>
int(-1)
}
[5]=>
array(5) {
[0]=>
int(-9)
[1]=>
int(34)
[2]=>
int(54)
[3]=>
int(0)
[4]=>
int(20)
}
[7]=>
array(5) {
[0]=>
string(5) "apple"
[1]=>
string(5) "Apple"
[2]=>
string(5) "APPLE"
[3]=>
string(5) "aPPle"
[4]=>
string(5) "aPpLe"
}
}
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