1--TEST-- 2register_shutdown_function() without a previous call frame 01 3--FILE-- 4<?php 5register_shutdown_function("forward_static_call", "hash_hkdf"); 6?> 7Done 8--EXPECT-- 9Done 10 11Fatal error: Uncaught Error: Cannot call forward_static_call() when no class scope is active in [no active file]:0 12Stack trace: 13#0 [internal function]: forward_static_call('hash_hkdf') 14#1 {main} 15 thrown in [no active file] on line 0 16