3v4l.org

run code in 300+ PHP versions simultaneously
<?php $classes = get_declared_classes(); foreach ( $classes as $clazz ) { $r = new ReflectionClass( $clazz ); if ( !$r->isInstantiable() ) { continue; } try { new $clazz(); } catch ( ArgumentCountError|TypeError $e ) { // Nothing } catch ( Throwable $e ) { echo $clazz . ": "; echo get_class( $e ) . ': ' . $e->getMessage() . "\n"; } }

preferences:
49.32 ms | 404 KiB | 5 Q