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--TEST--
Test array_multisort() function : usage variation - test sort order of all types
--FILE--
<?php
/* Prototype : bool array_multisort(array ar1 [, SORT_ASC|SORT_DESC [, SORT_REGULAR|SORT_NUMERIC|SORT_STRING|SORT_NATURAL|SORT_FLAG_CASE]] [, array ar2 [, SORT_ASC|SORT_DESC [, SORT_REGULAR|SORT_NUMERIC|SORT_STRING|SORT_NATURAL|SORT_FLAG_CASE]], ...])
* Description: Sort multiple arrays at once similar to how ORDER BY clause works in SQL
* Source code: ext/standard/array.c
* Alias to functions:
*/
echo "*** Testing array_multisort() : usage variation - test sort order of all types***\n";
// define some classes
class classWithToString {
public function __toString() {
return "Class A object";
}
}
class classWithoutToString { }
$inputs = array(
'int 0' => 0,
'float -10.5' => -10.5,
array(),
'uppercase NULL' => NULL,
'lowercase true' => true,
'empty string DQ' => "",
'string DQ' => "string",
'instance of classWithToString' => new classWithToString(),
'instance of classWithoutToString' => new classWithoutToString(),
'undefined var' => @$undefined_var,
);
var_dump(array_multisort($inputs));
var_dump($inputs);
?>
===DONE===
--EXPECTF--
*** Testing array_multisort() : usage variation - test sort order of all types***
bool(true)
array(10) {
["empty string DQ"]=>
string(0) ""
["int 0"]=>
int(0)
["uppercase NULL"]=>
NULL
["undefined var"]=>
NULL
[0]=>
array(0) {
}
["instance of classWithToString"]=>
object(classWithToString)#1 (0) {
}
["instance of classWithoutToString"]=>
object(classWithoutToString)#2 (0) {
}
["lowercase true"]=>
bool(true)
["float -10.5"]=>
float(-10.5)
["string DQ"]=>
string(6) "string"
}
===DONE===