note 92611 added to function.return
| From: | fyrye at osu1 dot php dot net | Date: | Fri, 31 Jul 2009 10:25:37 +0000 |
| Subject: | note 92611 added to function.return | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-158946@lists.php.net to get a copy of this message | ||
A side note when you return a conditional value the variable type will inherit its type of Boolean
For example
<?php
function foo($SQL){
$conTemp = new mysqli("locahost", "root", "", "");
$conTemp->select_db("MyDB");
return $conTemp->query($SQL) or die("Query Failed!");
}
$result = foo("SELECT UserName FROM Users LIMIT 1");
echo gettype($result); //returns Boolean instead of object or die
?>
Instead be explicit with your function like so
<?php
function foo($SQL){
$conTemp = new mysqli("locahost", "root", "", "");
$conTemp->select_db("MyDB");
if(!$result = $conTemp->query($SQL)){
return die("Query Failed");
}
return $result;
}
$result = foo("SELECT UserName FROM Users LIMIT 1");
echo gettype($result); //Now will return Object or die
?>
----
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Probable Submitter: 12.228.64.18
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Manual Page -- http://www.php.net/manual/en/function.return.php
Edit -- https://master.php.net/note/edit/92611
Del: integrated -- https://master.php.net/note/delete/92611/integrated
Del: useless -- https://master.php.net/note/delete/92611/useless
Del: bad code -- https://master.php.net/note/delete/92611/bad+code
Del: spam -- https://master.php.net/note/delete/92611/spam
Del: non-english -- https://master.php.net/note/delete/92611/non-english
Del: in docs -- https://master.php.net/note/delete/92611/in+docs
Del: other reasons-- https://master.php.net/note/delete/92611
Reject -- https://master.php.net/note/reject/92611
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