1.2.1383. Useless Default Argument

One of the argument has a default value, and this default value is never used. Every time the method is called, the argument is provided explicitly, rendering the default value actually useless.

<?php

function goo($a, $b = 3) {
    // do something here
}

// foo is called 3 times, and sometimes, $b is not provided.
goo(1,2);
goo(1,2);
goo(1);


function foo($a, $b = 3) {
    // do something here
}

// foo is called 3 times, and $b is always provided.
foo(1,2);
foo(1,2);
foo(1,2);
?>

1.2.1383.1. Suggestions

• Remove the default value

• Remove the explicit argument in the function call, when it is equal to the default value

1.2.1383.2. Specs

Short name	Functions/UselessDefault
Rulesets	All, Changed Behavior, Suggestions
Exakat since	1.7.9
PHP Version	All
Severity	Minor
Time To Fix	Quick (30 mins)
Precision	High
Features	function, default
Available in	Entreprise Edition, Exakat Cloud