Down the stairs

1<?php2function load(): void {3    echo "load starts\n";4    throw new RuntimeException('disk full');5    echo "load ends\n";6}7function save(): void {8    echo "save starts\n";9    load();10    echo "save ends\n";11}12function handle(): void {13    try {14        save();15        echo "handle saved\n";16    } catch (RuntimeException $e) {17        echo "caught: " . $e->getMessage() . "\n";18    }19    echo "handle goes on\n";20}21handle();