(PHP 7, PHP 8)
Generator::getReturn — Get the return value of a generator
public Generator::getReturn ( ) : mixed
This function has no parameters.
Returns the generator's return value once it has finished executing.
Example #1 Generator::getReturn() example
<?php
$gen = (function() {
    yield 1;
    yield 2;
    return 3;
})();
foreach ($gen as $val) {
    echo $val, PHP_EOL;
}
echo $gen->getReturn(), PHP_EOL; The above example will output:
1 2 3
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    https://www.php.net/manual/en/generator.getreturn.php