What are the advantages and disadvantages of using $_SESSION['adresse'][$x] instead of $_SESSION["adresse[$n]"] in PHP?

Using $_SESSION['adresse'][$x] allows for dynamic access to session variables based on a variable $x, which can be useful when iterating through an array of values. On the other hand, using $_SESSION["adresse[$n]"] may lead to syntax errors or unexpected behavior, especially when dealing with nested arrays or complex data structures. It is recommended to use $_SESSION['adresse'][$x] for more flexibility and clarity in your code. 

// Using $_SESSION['adresse'][$x]
$_SESSION['adresse'] = ['123 Main St', '456 Elm St', '789 Oak St'];
$x = 1;
echo $_SESSION['adresse'][$x]; // Outputs: 456 Elm St

Keywords

$_SESSION array access variable interpolation performance readability

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