Are there any specific server requirements or configurations needed to enable PHP 5 functionality for passing function arguments by reference with default values?

To enable PHP 5 functionality for passing function arguments by reference with default values, you need to ensure that the server is running PHP 5 or later. Additionally, you should check that the `allow_call_time_pass_reference` setting in php.ini is set to `On` to allow passing arguments by reference with default values. 

// Example code snippet to demonstrate passing function arguments by reference with default values in PHP 5
ini_set('allow_call_time_pass_reference', 1);

function testFunction(&$arg = 'default value') {
    echo $arg;
}

$var = 'new value';
testFunction($var); // Output: new value

Keywords

PHP 5 function arguments reference default values server requirements

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