匿名函数报错

[phper08]

在php版本 7.3.6 和 5.6.27下均会报错

<?php

$func = function() {
	echo 'ok';
};

错误信息为

---------- Run PHP ----------
PHP Notice: Undefined offset: 0 in D:\www\a.me\func_v2.php on line 237

Notice: Undefined offset: 0 in D:\www\a.me\func_v2.php on line 237
PHP Notice: Undefined offset: 1 in D:\www\a.me\func_v2.php on line 712

Notice: Undefined offset: 1 in D:\www\a.me\func_v2.php on line 712
PHP Notice: Undefined offset: -1 in D:\www\a.me\func_v2.php on line 766

Notice: Undefined offset: -1 in D:\www\a.me\func_v2.php on line 766
PHP Notice: Undefined index: token_name in D:\www\a.me\func_v2.php on line 1026

Notice: Undefined index: token_name in D:\www\a.me\func_v2.php on line 1026
PHP Notice: Undefined index: token_name in D:\www\a.me\func_v2.php on line 1026

Notice: Undefined index: token_name in D:\www\a.me\func_v2.php on line 1026
PHP Notice: Undefined index: token_name in D:\www\a.me\func_v2.php on line 1026

Notice: Undefined index: token_name in D:\www\a.me\func_v2.php on line 1026
PHP Notice: Undefined index: token_name in D:\www\a.me\func_v2.php on line 1026

Notice: Undefined index: token_name in D:\www\a.me\func_v2.php on line 1026
PHP Notice: Undefined index: token_name in D:\www\a.me\func_v2.php on line 1026

Notice: Undefined index: token_name in D:\www\a.me\func_v2.php on line 1026
PHP Notice: Undefined index: token_name in D:\www\a.me\func_v2.php on line 1026

Notice: Undefined index: token_name in D:\www\a.me\func_v2.php on line 1026
PHP Notice: Undefined index: token_name in D:\www\a.me\func_v2.php on line 1026

Notice: Undefined index: token_name in D:\www\a.me\func_v2.php on line 1026

Output completed (0 sec consumed) - Normal Termination

[c2xusnpq6]

wamp Apache/2.4.9 (Win64) PHP/5.5.12