What are the potential pitfalls of using illegal offset types in PHP when trying to organize POST data into arrays?

Using illegal offset types in PHP when organizing POST data into arrays can lead to unexpected behavior or errors. To avoid this issue, make sure to use valid offset types such as integers or strings when accessing array elements. 

// Example of organizing POST data into an array using valid offset types
$data = [];
foreach ($_POST as $key => $value) {
    $data[$key] = $value;
}

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