What are some alternative approaches to getting the names of arrays passed as arguments in a PHP function?

When passing arrays as arguments to a PHP function, the function receives a copy of the array, not a reference to the original array. To work with the original array, you can pass the array by reference using the `&` symbol before the parameter name. Another approach is to pass the array name as a string and use variable variables to access the array. 

// Passing the array by reference
function modifyArray(&$array) {
    $array[0] = 'modified';
}

$array = ['original'];
modifyArray($array);
print_r($array); // Output: Array ( [0] => modified )

// Using variable variables
function modifyArrayByName($arrayName) {
    global $$arrayName;
    $$arrayName[0] = 'modified';
}

$arrayName = 'array';
$$arrayName = ['original'];
modifyArrayByName($arrayName);
print_r($array); // Output: Array ( [0] => modified )

Keywords

reflection get_defined_vars debug_backtrace func_get_args variable variables

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