note 76188 added to function.is-array
| From: | Rob at osu1 dot php dot net | Date: | Wed, 04 Jul 2007 08:04:58 +0000 |
| Subject: | note 76188 added to function.is-array | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-128220@lists.php.net to get a copy of this message | ||
Here's another way to see if an array is associative (nobody actually uses the term
"vector" ;-) ). It's a little less breakable than the other current leading
suggestion, and it's somewhat faster. Tested with 1000 iterations of two simple arrays (one
associative, one not).
<?php
function array_is_associative ($array)
{
if ( is_array($array) && ! empty($array) )
{
for ( $iterator = count($array) - 1; $iterator; $iterator-- )
{
if ( ! array_key_exists($iterator, $array) ) { return true; }
}
return ! array_key_exists(0, $array);
}
return false;
}
?>
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Probable Submitter: 69.105.90.102
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Manual Page -- http://www.php.net/manual/en/function.is-array.php
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