What alternative function can be used instead of isset() to check if a variable is empty in PHP?

The alternative function that can be used instead of isset() to check if a variable is empty in PHP is empty(). The empty() function is used to determine whether a variable is considered to be empty. It will return true if the variable is empty (or false if it is not empty). 

// Using empty() function to check if a variable is empty
$variable = '';
if (empty($variable)) {
    echo 'Variable is empty';
} else {
    echo 'Variable is not empty';
}

Keywords

empty is_null ternary operator isset PHP

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