What is the purpose of the code snippet provided and what is the intended functionality?

The code snippet provided is intended to check if a variable is set and not empty in PHP. This is a common validation step to ensure that a variable has been initialized and contains some data before proceeding with further operations. The code snippet uses the `isset()` and `empty()` functions to achieve this. 

// Check if the variable is set and not empty
if(isset($variable) && !empty($variable)) {
    // Variable is set and not empty, proceed with further operations
    // For example, echo the variable
    echo $variable;
} else {
    // Variable is either not set or empty
    echo "Variable is not set or empty.";
}

Keywords

PHP code snippet purpose functionality intended

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