1.2.1329. Use List With Foreach

Foreach() structures accepts list() as blind key. If the loop-value is an array with a fixed structure, it is possible to extract the values directly into variables with explicit names.

<?php

// Short way to assign variables
// Works on PHP 7.1, where list() accepts keys.
foreach($names as list('first' => $first, 'last' => $last)) {
    doSomething($first, $last);
}

// Short way to assign variables
// Works on all PHP versions with numerically indexed arrays.
foreach($names as list($first, $last)) {
    doSomething($first, $last);
}

// Long way to assign variables
foreach($names as $name) {
    $first = $name['first'];
    $last = $name['last'];

    doSomething($first, $last);
}

?>

See also list and foreach.

1.2.1329.1. Suggestions

• Use the list keyword (or the short syntax), and simplify the array calls in the loop.

1.2.1329.2. Specs

Short name	Structures/UseListWithForeach
Rulesets	All, Changed Behavior, Suggestions, Top10
Exakat since	1.0.4
PHP Version	All
Severity	Minor
Time To Fix	Quick (30 mins)
Precision	Very high
Features	class
Examples	MediaWiki
Available in	Entreprise Edition, Exakat Cloud