note 118013 added to function.reset
| From: | arne dot ludwig at posteo dot de | Date: | Fri, 18 Sep 2015 09:22:14 +0000 |
| Subject: | note 118013 added to function.reset | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-203808@lists.php.net to get a copy of this message | ||
In response to gardnerjohng's note to retrieve the first _key_ of an array:
To retrieve the first _key_ of an array you can use the combination of reset() and key().
<?php
$properties = array(
'colour' => 'grey',
'flavour' => 'rubber',
'name' => 'Mouse Ball',
'texture' => 'rubbery'
);
reset($properties);
echo key($properties); // => 'colour'
?>
I prefer this solution as you don't have to create the keys array. This should (not measured)
improve performance on large arrays.
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