What are some potential pitfalls of using array_column in PHP?

One potential pitfall of using array_column in PHP is that it will throw a warning if the array is empty. To avoid this warning, you can check if the array is empty before using array_column. 

// Check if the array is empty before using array_column
if (!empty($array)) {
    $column = array_column($array, 'column_key');
} else {
    $column = [];
}

Keywords

array_column PHP associative arrays multidimensional arrays data extraction

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