note 59929 added to function.count
| From: | Scorch at netpix dot com | Date: | Tue, 20 Dec 2005 13:59:58 +0000 |
| Subject: | note 59929 added to function.count | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-100465@lists.php.net to get a copy of this message | ||
Be careful of recasting your variables, especially with database array returns:
<?php
$res = mysql_query("select * from blah") // a query that returns an empty set
$row = mysql_fetch_array($res); // get's 0 since there's no return
echo count($row); // echos 1 - since $row is not an array
echo $row[0]; // echos "", but casts $row as an array?
echo count($row); // echos 0 now
?>
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Manual Page -- http://www.php.net/manual/en/function.count.php
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