note 96562 modified in function.key by danbrown
| From: | danbrown@php.net | Date: | Fri, 05 Mar 2010 15:22:15 +0000 |
| Subject: | note 96562 modified in function.key by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-166700@lists.php.net to get a copy of this message | ||
I had a problem when there are nulls in your data, such as:-
<?php
$row = array( 'first'=>'number', 'second'=>'letter',
'third'=>null, 'forth'=>'word');
while($value = current($row)){
echo "\"".key($row)."\"";
next($row);
}
?>
The problem is that current() returns the value 'null', but it isn't the end of the
list. To get the correct results I used:-
<?php
foreach($row as $value){
echo "\"".key($row)."\"";
next($row);
}
?>
--was--
I had a problem when there are nulls in your data, such as:-
$row = array( 'first'=>'number', 'second'=>'letter',
'third'=>null, 'forth'=>'word');
while($value = current($row)){
echo "\"".key($row)."\"";
next($row);
}
The problem is that current() returns the value 'null', but it isn't the end of the
list. To get the correct results I used:-
foreach($row as $value){
echo "\"".key($row)."\"";
next($row);
}
http://php.net/manual/en/function.key.php