How can the warning messages related to array_keys() and max() be resolved in PHP 7.1?

The warning messages related to array_keys() and max() in PHP 7.1 can be resolved by checking if the array is empty before calling these functions. This can prevent the warnings that occur when trying to operate on an empty array. 

// Check if the array is empty before using array_keys() and max()
if (!empty($array)) {
    $keys = array_keys($array);
    $maxValue = max($array);
    // Rest of the code that uses $keys and $maxValue
} else {
    // Handle the case when the array is empty
}

Keywords

array_keys max warning messages PHP 7.1 resolution

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