1.2.302. Could Use Yield From

Yield from can be applied to an array or another generator <https://www.php.net/`generator>`_. It replaces a loop and a yield call. The resulting syntax is shorter and faster.

<?php

foreach(foo() as $f) {
     doSomething($f);
}

// using yield and a loop to yield all elements
function foo() {
     foreach(goo() as $g) {
             yield $g;
     }
}

// using yield from to yield all elements
function foo2() {
     yield from goo();
}

function goo() : array {
     return [1,2,3];
}

?>

1.2.302.1. Connex PHP features

• yield-from

1.2.302.1.1. Suggestions

• Use yield from keyword and shorten the syntax

1.2.302.1.2. Specs

Short name	Structures/CouldUseYieldFrom
Rulesets	All, Analyze, Changed Behavior, Performances
Exakat since	2.5.3
PHP Version	All
Severity	Minor
Time To Fix	Quick (30 mins)
Precision	High
Available in	Entreprise Edition, Exakat Cloud