From:
Operating system:
PHP version: Irrelevant
Package: Arrays related
Bug Type: Feature/Change Request
Bug description:New argument $invert for array_filter()
Description:
------------
I think, it would be useful to add new argument $invert to array_filter()
function. It will be most useful to use built-in functions as a callback.
For example this call:
$result = array_filter($values, 'is_null', true);
should to _remove_ all NULLs from array.
May be the parameter should be named $positive and have default value TRUE
(and FALSE for inversion) to make code readable.
Test script:
---------------
$values = array(42, 'foo', false, null, array(), '');
var_dump(
array_filter($values, null, true), // no callback - leave false value
array_filter($values, 'is_null', true) // leave non-null values
);
Expected result:
----------------
array(5) {
[0]=>
bool(false)
[1]=>
NULL
[2]=>
array(0) {
}
[3]=>
string(0) ""
}
array(5) {
[0]=>
int(42)
[1]=>
string(3) "foo"
[2]=>
bool(false)
[3]=>
array(0) {
}
[4]=>
string(0) ""
}
--
Edit bug report at https://bugs.php.net/bug.php?id=55633&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=55633&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=55633&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=55633&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=55633&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=55633&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=55633&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=55633&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=55633&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=55633&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=55633&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=55633&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=55633&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=55633&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=55633&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=55633&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=55633&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=55633&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=55633&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=55633&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=55633&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=55633&r=mysqlcfg
