Are there any potential pitfalls to be aware of when accessing array elements directly in PHP?

One potential pitfall when accessing array elements directly in PHP is the possibility of encountering "undefined index" notices if the specified array key does not exist. To avoid this issue, you can use the isset() function to check if the key exists before attempting to access it. 

// Check if the array key exists before accessing it
if (isset($array['key'])) {
    $value = $array['key'];
    // Use the value here
} else {
    // Handle the case when the key does not exist
}

Keywords

array elements direct access PHP errors data validation

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