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|
--TEST--
Test array_merge() function : usage variations - referenced variables
--INI--
allow_call_time_pass_reference=on
--FILE--
<?php
/* Prototype : array array_merge(array $arr1, array $arr2 [, array $...])
* Description: Merges elements from passed arrays into one array
* Source code: ext/standard/array.c
*/
/* Test array_merge() when:
* 1. Passed an array made up of referenced variables
* 2. Passed an array as the first argument and a reference to that array as the second.
*/
echo "*** Testing array_merge() : usage variations ***\n";
$val1 = 'foo';
$val2 = 'bar';
$val3 = 'baz';
$arr1 = array(&$val1, &$val2, &$val3);
$arr2 = array('key1' => 'val1', 'key2' => 'val2', 'key3' => 'val3');
echo "\n-- Merge an array made up of referenced variables to an assoc. array --\n";
var_dump(array_merge($arr1, $arr2));
var_dump(array_merge($arr2, $arr1));
$val2 = 'hello world';
echo "\n-- Change \$val2 --\n";
var_dump(array_merge($arr1, $arr2));
var_dump(array_merge($arr2, $arr1));
echo "\n-- Merge an array and a reference to the first array --\n";
var_dump(array_merge($arr2, &$arr2));
echo "Done";
?>
--EXPECTF--
*** Testing array_merge() : usage variations ***
-- Merge an array made up of referenced variables to an assoc. array --
array(6) {
[0]=>
&string(3) "foo"
[1]=>
&string(3) "bar"
[2]=>
&string(3) "baz"
["key1"]=>
string(4) "val1"
["key2"]=>
string(4) "val2"
["key3"]=>
string(4) "val3"
}
array(6) {
["key1"]=>
string(4) "val1"
["key2"]=>
string(4) "val2"
["key3"]=>
string(4) "val3"
[0]=>
&string(3) "foo"
[1]=>
&string(3) "bar"
[2]=>
&string(3) "baz"
}
-- Change $val2 --
array(6) {
[0]=>
&string(3) "foo"
[1]=>
&string(11) "hello world"
[2]=>
&string(3) "baz"
["key1"]=>
string(4) "val1"
["key2"]=>
string(4) "val2"
["key3"]=>
string(4) "val3"
}
array(6) {
["key1"]=>
string(4) "val1"
["key2"]=>
string(4) "val2"
["key3"]=>
string(4) "val3"
[0]=>
&string(3) "foo"
[1]=>
&string(11) "hello world"
[2]=>
&string(3) "baz"
}
-- Merge an array and a reference to the first array --
array(3) {
["key1"]=>
string(4) "val1"
["key2"]=>
string(4) "val2"
["key3"]=>
string(4) "val3"
}
Done
|
