1--TEST-- 2Bug #75556 (Invalid opcode 138/1/1) 3--INI-- 4opcache.enable=1 5opcache.enable_cli=1 6opcache.optimization_level=-1 7--EXTENSIONS-- 8opcache 9--FILE-- 10<?php 11 function createFromFormat($format, $date, ?\DateTimeZone $tz = null): ?\DateTimeInterface 12 { 13 if ($tz !== null 14 || ($tz instanceof \DateTimeZone && !in_array($tz->getName(), ['UTC', 'Z'], true)) 15 ) { 16 $msg = 'Date objects must have UTC as their timezone'; 17 throw new \UnexpectedValueException($msg); 18 } 19 20 return null; 21} 22 23var_dump(createFromFormat('m/d/Y', '12/07/2017', null)); 24?> 25--EXPECT-- 26NULL 27