Re: Assignment in Conditional - How are they evaluated?
| From: | Robert Cummings | Date: | Thu, 29 Oct 2009 14:11:36 +0000 |
| Subject: | Re: Assignment in Conditional - How are they evaluated? | ||
| References: | 1 2 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-299500@lists.php.net to get a copy of this message | ||
Ashley Sheridan wrote:
On Thu, 2009-10-29 at 13:58 +0000, Mark Skilbeck wrote:I do this all the time... an example is the following: <?php if( ($user = get_current_user()) ) {How is the following evaluated: [code] if ($data = somefunc()) ... [/code] Ignoring the 'assignment inside condition' arguments, is the return value of somefunc() assigned to $data, and then $data's value is evaluated (to true or false), or is the actual assignment tested (does the assignment fail, etc)?I believe that it determines if the return value of somefunc() is non-false. It will have the added benefit then that you can use the return value afterwards if it was, for example, not true, but a string or something instead.
// Yay, we have a user... do something.
echo $user->name();
}
else
{
// Handle no current user.
echo 'Anonymous';
}
?>
Cheers,
Rob.
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