What is the purpose of using get_defined_vars() in PHP and how can it be utilized effectively?

The purpose of using get_defined_vars() in PHP is to retrieve an array of all defined variables in the current scope. This can be useful for debugging or logging purposes, or for dynamically accessing variables based on their names. 

// Get an array of all defined variables
$vars = get_defined_vars();

// Loop through the array and do something with the variables
foreach($vars as $key => $value) {
    echo $key . ": " . $value . "<br>";
}

Keywords

get_defined_vars PHP variables debugging utilization

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