syntax explanation, please?
I'm making a tiny application, and I'm using post-data. And the PHP 5.3 throws warnings if i don't check if a $_POST variable is set before trying eg. $var = $_POST['somevariable'];
And what I wanted to do is making as small code as possible, but still check if the post-var is set or not, and if one of the post-vars is not set, it should set a $error variable to true.
So I wrote the code like this.
What happens is that, if $_POST['userid'] is set then $userid should get it's value. But if its not, $userid should get the value 43, and the $error variable should be set to true. And it sure works. But I don't really get what happens there. I just tried the $error = true | 43 by a coincidence, and it works, but I'm not sure if it's really the right way of doing it? Is this really correct syntax?
$error = false;
$userid = isset($_POST['userid']) ? $_POST['userid'] : $error = true | 43;
if($error == true) echo "error\n";
And if it is good syntax... Is it any way of making this even shorter? for example so I don't have to write $_POST['userid'] two times? So I could replace it with $1 or something like that.
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