Well, couldn't you just set the argument default? For example:
<?php
/* define function */
function funcName($Argument ="WORLD") { // "WORLD" as default
echo "Hello, " . $Argument . "!";
}
// calls to function
funcName('DENVER'); // with argument
funcName(); // without
?>
EDIT; if you want absolutely no value for the default argument, just do this:
<?php
function funcName($Argument ="") {
// define function here...
}
?>
