note 85109 added to function.array-unique
| From: | soapergem at gmail dot com | Date: | Thu, 14 Aug 2008 21:39:39 +0000 |
| Subject: | note 85109 added to function.array-unique | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-143508@lists.php.net to get a copy of this message | ||
Here's another solution for returning an array that only includes repeated values. There is one
given below but it only works on numerically indexed arrays; this one is more comprehensive since I
used the foreach iterator. Also, this one preserves keys--in that the returned result contains a
distinct list of repeats (storing only the first instance it encounters of each duplicate value).
<?php
function array_repeated($array)
{
if ( !is_array($array) ) {
return false;
}
$duplicates = array();
foreach ( $array as $key => $val ) {
end($array);
$k = key($array);
$v = current($array);
while ( $k !== $key ) {
if ( $v === $val ) {
$duplicates[$key] = $v;
}
$v = prev($array);
$k = key($array);
}
}
return $duplicates;
}
?>
----
Server IP: 64.71.164.2
Probable Submitter: 66.170.10.66
----
Manual Page -- http://www.php.net/manual/en/function.array-unique.php
Edit -- https://master.php.net/note/edit/85109
Del: integrated -- https://master.php.net/note/delete/85109/integrated
Del: useless -- https://master.php.net/note/delete/85109/useless
Del: bad code -- https://master.php.net/note/delete/85109/bad+code
Del: spam -- https://master.php.net/note/delete/85109/spam
Del: non-english -- https://master.php.net/note/delete/85109/non-english
Del: in docs -- https://master.php.net/note/delete/85109/in+docs
Del: other reasons-- https://master.php.net/note/delete/85109
Reject -- https://master.php.net/note/reject/85109
Search -- https://master.php.net/manage/user-notes.php