note 71426 added to ref.array
| From: | simone dot carletti at unimc dot it | Date: | Tue, 28 Nov 2006 15:09:22 +0000 |
| Subject: | note 71426 added to ref.array | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-120127@lists.php.net to get a copy of this message | ||
Ever wanted to obtain a subset of an associative array from a list of parameters (stored into a
non-associative array)?
Give this a try:
<?php
$params = array("name" => "Simone", "gender" => "M",
"city" => "Macerata", "phone" => 123);
$fields = array("name", "city");
echo "<pre>";
print_r($params);
print_r($fields);
print_r(subArr($params, $fields));
function subArr($assocArrHaystack, $arrFields)
{
$arrSub = array();
foreach ($assocArrHaystack as $key => $value) {
if (in_array($key, $arrFields)) {
$arrSub[$key] = $value;
}
}
return $arrSub;
}
?>
And the output is:
Array
(
[name] => Simone
[gender] => M
[city] => Macerata
[phone] => 123
)
Array
(
[0] => name
[1] => city
)
Array
(
[name] => Simone
[city] => Macerata
)
Enjoy!
Simone
----
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----
Manual Page -- http://www.php.net/manual/en/ref.array.php
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