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--TEST--
Test uksort() function : usage variation
--FILE--
<?php
/* Prototype : bool uksort(array array_arg, string cmp_function)
* Description: Sort an array by keys using a user-defined comparison function
* Source code: ext/standard/array.c
* Alias to functions:
*/
echo "*** Testing uksort() : usage variation ***\n";
// Initialise function arguments not being substituted (if any)
$array_arg = array(1, 2);
//get an unset variable
$unset_var = 10;
unset ($unset_var);
// define some classes
class classWithToString
{
public function __toString() {
return "Class A object";
}
}
class classWithoutToString
{
}
// heredoc string
$heredoc = <<<EOT
hello world
EOT;
// add arrays
$index_array = array (1, 2, 3);
$assoc_array = array ('one' => 1, 'two' => 2);
//array of values to iterate over
$inputs = array(
// int data
'int 0' => 0,
'int 1' => 1,
'int 12345' => 12345,
'int -12345' => -2345,
// float data
'float 10.5' => 10.5,
'float -10.5' => -10.5,
'float 12.3456789000e10' => 12.3456789000e10,
'float -12.3456789000e10' => -12.3456789000e10,
'float .5' => .5,
// array data
'empty array' => array(),
'int indexed array' => $index_array,
'associative array' => $assoc_array,
'nested arrays' => array('foo', $index_array, $assoc_array),
// null data
'uppercase NULL' => NULL,
'lowercase null' => null,
// boolean data
'lowercase true' => true,
'lowercase false' =>false,
'uppercase TRUE' =>TRUE,
'uppercase FALSE' =>FALSE,
// empty data
'empty string DQ' => "",
'empty string SQ' => '',
// object data
'instance of classWithToString' => new classWithToString(),
'instance of classWithoutToString' => new classWithoutToString(),
// undefined data
'undefined var' => @$undefined_var,
// unset data
'unset var' => @$unset_var,
);
// loop through each element of the array for cmp_function
foreach($inputs as $key =>$value) {
echo "\n--$key--\n";
var_dump( uksort($array_arg, $value) );
};
?>
===DONE===
--EXPECTF--
*** Testing uksort() : usage variation ***
--int 0--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--int 1--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--int 12345--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--int -12345--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--float 10.5--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--float -10.5--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--float 12.3456789000e10--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--float -12.3456789000e10--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--float .5--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--empty array--
Warning: uksort() expects parameter 2 to be a valid callback, array must have exactly two members in %suksort_variation2.php on line %d
NULL
--int indexed array--
Warning: uksort() expects parameter 2 to be a valid callback, array must have exactly two members in %suksort_variation2.php on line %d
NULL
--associative array--
Warning: uksort() expects parameter 2 to be a valid callback, first array member is not a valid class name or object in %suksort_variation2.php on line %d
NULL
--nested arrays--
Warning: uksort() expects parameter 2 to be a valid callback, array must have exactly two members in %suksort_variation2.php on line %d
NULL
--uppercase NULL--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--lowercase null--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--lowercase true--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--lowercase false--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--uppercase TRUE--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--uppercase FALSE--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--empty string DQ--
Warning: uksort() expects parameter 2 to be a valid callback, function '' not found or invalid function name in %suksort_variation2.php on line %d
NULL
--empty string SQ--
Warning: uksort() expects parameter 2 to be a valid callback, function '' not found or invalid function name in %suksort_variation2.php on line %d
NULL
--instance of classWithToString--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--instance of classWithoutToString--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--undefined var--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
--unset var--
Warning: uksort() expects parameter 2 to be a valid callback, no array or string given in %suksort_variation2.php on line %d
NULL
===DONE===