1.2.252. Could Be Callable

Mark arguments and return types that can be set to callable.

The analysis also reports properties that could be ‘callable’, although PHP doesn’t allow that configuration. Note that properties cannot be callable. It reports a compilation error.

<?php

// Accept a callable as input
function foo($b) {
    // Returns value as return
    return $b();
}

?>

See also Callbacks / callables.

1.2.252.2. Connex PHP features

1.2.252.2.1. Suggestions

  • Add callable typehint to arguments or returntypes.

1.2.252.2.2. Specs

Short name

Typehints/CouldBeCallable

Rulesets

All, Changed Behavior, Typechecks

Exakat since

2.1.2

PHP Version

All

Severity

Major

Time To Fix

Quick (30 mins)

Precision

High

Available in

Entreprise Edition, Exakat Cloud