1.2.757. Named Arguments And Variadic

Variadic arguments must be the lasts in the list of arguments. Since PHP 8.1, it is possible to use named arguments after a variadic argument.

<?php
   function foo($a, $b) {}

   $args = ['b' => 2];

  // named arguments may be after the variadic
  foo(...$args, a: 1);

  // Fatal error: positional arguments MUST be before the variadic
  foo(...$args,  1);

  // positional way of laying the arguments
  foo(1, ...$args);
?>

1.2.757.1. Related PHP errors

• Cannot combine named arguments and argument unpacking

• Cannot use positional argument after argument unpacking

1.2.757.2. Connex PHP features

• Variadic

• Named Parameters

1.2.757.2.1. Suggestions

• Always put the variadic at the end of the argument list

1.2.757.2.2. Specs

Short name	Php/NamedArgumentAndVariadic
Rulesets	All, Changed Behavior, CompatibilityPHP80, CompatibilityPHP81
Exakat since	2.5.0
PHP Version	With PHP 8.1 and more recent
Severity	Minor
Time To Fix	Quick (30 mins)
Precision	Very high
Available in	Entreprise Edition, Exakat Cloud