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--TEST--
Test uasort() function : usage variations - anonymous function as 'cmp_function'
--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
*/
/*
* Passing different anonymous functions as 'cmp_function'
* arguments passed by value
* arguments passed by reference
*/
echo "*** Testing uasort() : anonymous function as 'cmp_function' ***\n";
$cmp_function = 'if($value1 == $value2) {return 0;} else if($value1 > $value2) {return 1;} else{return -1;}';
$array_arg = array(0 => 100, 1 => 3, 2 => -70, 3 => 24, 4 => 90);
echo "-- Anonymous 'cmp_function' with parameters passed by value --\n";
var_dump( uasort($array_arg, create_function('$value1, $value2',$cmp_function) ) );
var_dump($array_arg);
$array_arg = array("b" => "Banana", "m" => "Mango", "a" => "Apple", "p" => "Pineapple");
echo "-- Anonymous 'cmp_function' with parameters passed by reference --\n";
var_dump( uasort($array_arg, create_function('&$value1, &$value2', $cmp_function) ) );
var_dump($array_arg);
echo "Done"
?>
--EXPECTF--
*** Testing uasort() : anonymous function as 'cmp_function' ***
-- Anonymous 'cmp_function' with parameters passed by value --
bool(true)
array(5) {
[2]=>
int(-70)
[1]=>
int(3)
[3]=>
int(24)
[4]=>
int(90)
[0]=>
int(100)
}
-- Anonymous 'cmp_function' with parameters passed by reference --
bool(true)
array(4) {
["a"]=>
string(5) "Apple"
["b"]=>
string(6) "Banana"
["m"]=>
string(5) "Mango"
["p"]=>
string(9) "Pineapple"
}
Done
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