mirror of
https://github.com/php/php-src.git
synced 2025-08-20 09:24:05 +02:00
dadb92ea35
The only case here that might be *somewhat* sensible is the userdata argument of array_walk(), which could be used to keep persistent state between callback invokations -- with the WTF moment that the final result after the walk finishes will be unchanged. Nowdays, this is much better achieved using a closure with a use-by-reference.
125 lines
1.7 KiB
PHP
125 lines
1.7 KiB
PHP
--TEST--
|
|
Test array_map() function : usage variations - references
|
|
--FILE--
|
|
<?php
|
|
|
|
echo "*** Testing array_map() : references ***\n";
|
|
$arr = array("k1" => "v1","k2"=>"v2");
|
|
$arr[]=&$arr["k1"];
|
|
$arr[]=&$arr;
|
|
function cb1 ($a) {var_dump ($a);return array ($a);};
|
|
var_dump( array_map("cb1", $arr));
|
|
var_dump( array_map(null, $arr));
|
|
var_dump( array_map(null, $arr, $arr));
|
|
|
|
// break cycles
|
|
$arr[0] = null;
|
|
$arr[1] = null;
|
|
|
|
echo "Done";
|
|
?>
|
|
--EXPECT--
|
|
*** Testing array_map() : references ***
|
|
string(2) "v1"
|
|
string(2) "v2"
|
|
string(2) "v1"
|
|
array(4) {
|
|
["k1"]=>
|
|
&string(2) "v1"
|
|
["k2"]=>
|
|
string(2) "v2"
|
|
[0]=>
|
|
&string(2) "v1"
|
|
[1]=>
|
|
*RECURSION*
|
|
}
|
|
array(4) {
|
|
["k1"]=>
|
|
array(1) {
|
|
[0]=>
|
|
string(2) "v1"
|
|
}
|
|
["k2"]=>
|
|
array(1) {
|
|
[0]=>
|
|
string(2) "v2"
|
|
}
|
|
[0]=>
|
|
array(1) {
|
|
[0]=>
|
|
string(2) "v1"
|
|
}
|
|
[1]=>
|
|
array(1) {
|
|
[0]=>
|
|
array(4) {
|
|
["k1"]=>
|
|
&string(2) "v1"
|
|
["k2"]=>
|
|
string(2) "v2"
|
|
[0]=>
|
|
&string(2) "v1"
|
|
[1]=>
|
|
*RECURSION*
|
|
}
|
|
}
|
|
}
|
|
array(4) {
|
|
["k1"]=>
|
|
&string(2) "v1"
|
|
["k2"]=>
|
|
string(2) "v2"
|
|
[0]=>
|
|
&string(2) "v1"
|
|
[1]=>
|
|
*RECURSION*
|
|
}
|
|
array(4) {
|
|
[0]=>
|
|
array(2) {
|
|
[0]=>
|
|
&string(2) "v1"
|
|
[1]=>
|
|
&string(2) "v1"
|
|
}
|
|
[1]=>
|
|
array(2) {
|
|
[0]=>
|
|
string(2) "v2"
|
|
[1]=>
|
|
string(2) "v2"
|
|
}
|
|
[2]=>
|
|
array(2) {
|
|
[0]=>
|
|
&string(2) "v1"
|
|
[1]=>
|
|
&string(2) "v1"
|
|
}
|
|
[3]=>
|
|
array(2) {
|
|
[0]=>
|
|
&array(4) {
|
|
["k1"]=>
|
|
&string(2) "v1"
|
|
["k2"]=>
|
|
string(2) "v2"
|
|
[0]=>
|
|
&string(2) "v1"
|
|
[1]=>
|
|
*RECURSION*
|
|
}
|
|
[1]=>
|
|
&array(4) {
|
|
["k1"]=>
|
|
&string(2) "v1"
|
|
["k2"]=>
|
|
string(2) "v2"
|
|
[0]=>
|
|
&string(2) "v1"
|
|
[1]=>
|
|
*RECURSION*
|
|
}
|
|
}
|
|
}
|
|
Done
|