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PHP PHP User Authentication Adding Authentication to Your Application User Profile

Brandyn Lordi
Brandyn Lordi
17,778 Points
Posted by Brandyn Lordi
Brandyn Lordi
17,778 Points

Why the curly braces?

why are there curly braces around $prop in this line:

return $jwt->{$prop};

1 Answer

Chris Shaw
Chris Shaw
26,676 Points
Chris Shaw
Chris Shaw
26,676 Points

Hi Brandyn Lordi,

The curly braces denote a dynamic expression for retrieving member values within an object. In the case of your example above, $prop is the member name of the $jwt object. Below is a few different ways of accessing object values.

$alg = 'alg';

$jwt->alg // Directly
$jwt->{'alg'} // Dynamically using a string
$jwt->{$alg} // Dyanmically using a variable

Hope that helps!