note 40889 deleted from function.array-search by felipe
| From: | felipe@php.net | Date: | Sun, 10 Feb 2008 13:10:54 +0000 |
| Subject: | note 40889 deleted from function.array-search by felipe | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-135962@lists.php.net to get a copy of this message | ||
Note Submitter: apolion at loliart dot com
----
This is a silly thing, but it can drive you crazy if you do not read the warning above.
<?php
$array = array(0 => 'blue', 1 => 'red', 2 => 'green', 3 =>
'red');
$key = array_search('blue', $array); // $key = 2;
echo $key;
if($key==FALSE){
echo "FALSE";
}else{
echo "TRUE";
}
?>
It will print FALSE.
Use this coding instead:
<?php
$array = array(0 => 'blue', 1 => 'red', 2 => 'green', 3 =>
'red');
$key = array_search('blue', $array); // $key = 2;
//$key = array_search('red', $array); // $key = 1;
echo $key;
if($key===FALSE){
echo "FALSE";
}else{
echo "TRUE";
}
?>
It will return TRUE