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--TEST--
Test array_diff() function : basic functionality
--FILE--
<?php
/* Prototype : array array_diff(array $arr1, array $arr2 [, array ...])
* Description: Returns the entries of $arr1 that have values which are not present
* in any of the others arguments.
* Source code: ext/standard/array.c
*/
/*
* Test basic functionality of array_diff
*/
echo "*** Testing array_diff() : basic functionality ***\n";
//Test indexed array with integers as elements
$array_int1 = array (1, 2, 3, 4);
$array_int2 = array (3, 4, 5, 6);
echo "-- Test indexed array with integers as elements --\n";
var_dump(array_diff($array_int1, $array_int2));
var_dump(array_diff($array_int2, $array_int1));
//Test indexed array with strings as elements
$array_string1 = array ('one', 'two', 'three', 'four');
$array_string2 = array ('three', 'four', 'five', 'six');
echo "-- Test indexed array with strings as elements --\n";
var_dump(array_diff($array_string1, $array_string2));
var_dump(array_diff($array_string2, $array_string1));
//Test associative array with strings as keys and integers as elements
$array_assoc_int1 = array ('one' => 1, 'two' => 2, 'three' => 3, 'four' => 4);
$array_assoc_int2 = array ('three' => 3, 'four' => 4, 'five' => 5, 'six' => 6);
echo "-- Test associative array with strings as keys and integers as elements --\n";
var_dump(array_diff($array_assoc_int1, $array_assoc_int2));
var_dump(array_diff($array_assoc_int2, $array_assoc_int1));
//Test associative array with strings as keys and elements
$array_assoc_str1 = array ('one' => 'un', 'two' => 'deux', 'three' => 'trois', 'four' => 'quatre');
$array_assoc_str2 = array ('three' => 'trois', 'four' => 'quatre', 'five' => 'cinq', 'six' => 'six');
echo "-- Test associative array with strings as keys and integers as elements --\n";
var_dump(array_diff($array_assoc_str1, $array_assoc_str2));
var_dump(array_diff($array_assoc_str2, $array_assoc_str1));
echo "-- Test array_diff with more than 2 arguments --\n";
var_dump(array_diff($array_int1, $array_int2, $array_string1, $array_string2));
echo "Done";
?>
--EXPECTF--
*** Testing array_diff() : basic functionality ***
-- Test indexed array with integers as elements --
array(2) {
[0]=>
int(1)
[1]=>
int(2)
}
array(2) {
[2]=>
int(5)
[3]=>
int(6)
}
-- Test indexed array with strings as elements --
array(2) {
[0]=>
string(3) "one"
[1]=>
string(3) "two"
}
array(2) {
[2]=>
string(4) "five"
[3]=>
string(3) "six"
}
-- Test associative array with strings as keys and integers as elements --
array(2) {
["one"]=>
int(1)
["two"]=>
int(2)
}
array(2) {
["five"]=>
int(5)
["six"]=>
int(6)
}
-- Test associative array with strings as keys and integers as elements --
array(2) {
["one"]=>
string(2) "un"
["two"]=>
string(4) "deux"
}
array(2) {
["five"]=>
string(4) "cinq"
["six"]=>
string(3) "six"
}
-- Test array_diff with more than 2 arguments --
array(2) {
[0]=>
int(1)
[1]=>
int(2)
}
Done
|
