What potential pitfalls should be avoided when accessing array elements in PHP?

One potential pitfall to avoid when accessing array elements in PHP is trying to access an index that does not exist, which can result in a "Undefined offset" notice or error. To prevent this issue, you can first check if the index exists in the array before attempting to access it using functions like isset() or array_key_exists(). 

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

Keywords

array elements PHP accessing pitfalls errors

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