Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: Arno Welzel <usenet@arnowelzel.de>
Newsgroups: comp.lang.php,alt.comp.lang.php,alt.php
Subject: Re: Newbie needs recommendation for fast learning a little php.
Date: Thu, 1 Jul 2021 10:49:18 +0200
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Not_even_a_newbie@example.net:

> On Wed, 30 Jun 2021 15:09:57 +0200, Arno Welzel <usenet@arnowelzel.de>
> wrote:
[...]
>> Much simpler:
>>
>> <?php
>> echo "This file was last modified on: ";
>> echo date("Y-m-d H:m",filemtime($_SERVER["SCRIPT_FILENAME"]));
>> ?>
> 
> Thanks for that. I've plugged this in and saved it as foo.php and I
> get an odd reaction. The actual time stamp on the file is 13:22, but
> the above script is telling me that the file was last modified at
> 13:06. I suppose that the idiots at my Web host may have screwed up
> something on the server. The 13:22 time is when I created the file, so
> it can't be that it's showing when it was created and not when it was
> modified. I'm scratching my head here.

You can also try this to make sure the file system cache is emptied:

<?php
clearstatcache($_SERVER["SCRIPT_FILENAME"]);
echo "This file was last modified on: ";
echo date("Y-m-d H:m",filemtime($_SERVER["SCRIPT_FILENAME"]));
?>

And if this doesn't work, use a global cache clear:

<?php
clearstatcache();
echo "This file was last modified on: ";
echo date("Y-m-d H:m",filemtime($_SERVER["SCRIPT_FILENAME"]));
?>

Also see: <https://www.php.net/manual/en/function.clearstatcache.php>

>> Also see:
>>
>> <https://www.php.net/manual/en/reserved.variables.server.php>
>>
>> "'SCRIPT_FILENAME'
>>
>> The absolute pathname of the currently executing script."
> 
> Okay, I don't understand what you mean in the piece immediately above
> this. The above url seems to say that the script will just run.

$_SERVER is a super global array which provides a number of runtime
parameters of the current script. $_SERVER["SCRIPT_FILENAME"] contains
the complete name of the current script including the path or the name
which was passed at command line when using PHP as CLI.

-- 
Arno Welzel
https://arnowelzel.de