note 77492 modified in language.functions by levim

You can set variable DEFAULT values for a function in the (). These will be over-written by any input values (or non values). <?php function default_values_test ($a = 123, $b = 456){ echo "a = ".$a."<br/>"; echo "b = ".$b."<br/>"; echo "<br/>"; } default_values_test(); // uses values set in 'header' default_values_test('overwritten', 987654321); // uses these values default_values_test($non_existent, "var A has to be overwritten."); // you can only use this for the last vars. ?> OUTPUT: ---------- a = 123 b = 456 a = overwritten b = 987654321 a = b = var A has to be overwritten. --was-- You can set variable DEFUALT values for a function in the (). These will be over-written by any input values (or non values). function defualt_values_test ($a = 123, $b = 456){ echo "a = ".$a."<br/>"; echo "b = ".$b."<br/>"; echo "<br/>"; } defualt_values_test(); // uses values set in 'header' defualt_values_test('overwritten',987654321); // uses these values defualt_values_test($non_existant,"var A has to be overwritten."); // you can only use this for the last vars. OUTPUTS: ---------- a = 123 b = 456 a = overwritten b = 987654321 a = b = var A has to be overwritten. http://php.net/manual/en/language.functions.php