Ask for advice on phptouch errors!

Ask for advice on phptouch errors! Upload the program to the linux server today. everything is normal. When you enter the website background, an error is reported ..

Touch () [function. touch]: Utime failed: Operation not permitted

What is this ??
I searched the internet and said it was a php setup problem. which setting is it? how can I solve this problem!

Reply to discussion (solution)

The touch function is disabled.

Moderator, how can I unban it.

Check the settings of disable_functions = .. in php. ini. no function is allowed.

Utime failed: Operation not permitted
UTIME failed: Operation not allowed

Disabled. worse.
But I don't know why you want to modify the file's modification date.

Literally, I understand that I want to explain why this prompt is prompted. how can I avoid it ???
This prompt is not reported locally...

What about permissions? You can modify the permissions of your WEB directory.

I changed the permission to 777, but I still cannot.

No one answered the question ..

No one cares about this problem? Dear elders ..

Whether to disable this function when security mode is enabled... Not Tested

Why can't I find the cause? why can I disable this function? the local environment is okay, and the Directory permission is also 777,

This problem also occurs when file groups are restricted.