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Last Modified Include

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May 15.2006

Hi. I am hoping someone can point me in the right direction:

I using php to print last modified date on each of my pages. On each page, I have:
[FONT=Courier New]
<php? $last_modified = filemtime(“FILENAME.php”); print “Last modified ” . date(“l, dS F, Y “, $last_modified); ?>[/FONT]

I’d rather use an include here, so that if I want to change the format, I can do it in one place. In the include file, I guess I would need to create a variable inside filemtime() that represented the php file calling the include. Is this possible? If so, how? Thanks in advance.

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9 Comments(s) ↴

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@aaronbdavisMay 15.2006 — I would suggest modifying it slightly (this is untested, so you may have to tweak it a bit):[code=php]$last_modified = filemtime($_SERVER['PHP_SELF']);
print "Last modified " . date("l, dS F, Y ", $last_modified);[/code] Then you ought to be able to include this into an Include file.
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@ShmohelMay 15.2006 — Save as [b]filetime.php[/b]
[code=php]<?
$last_modified = filemtime($_GET['file']);
echo "Last modified " . date("l, dS F, Y ", $last_modified);
?>[/code]

Then, where you want it to display:
[code=php]
require('filetime.php?file=filename.php');
[/code]
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@askohenauthorMay 15.2006 — Hmm. I can't get either of these to work. Shmohel, I am wondering about the 'file' parameter in the $_GET. Doesn't this need to be a variable that represents the file where the include is embedded?
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@ShmohelMay 15.2006 — Yea, if all these files are not in the same folder, it will not work. What does the file structure you are going for look like? Where is [b]filename.php[/b] located?
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@bokehMay 15.2006 — I using php to print last modified date on each of my pages. [/QUOTE]What's the purpose of doing that?
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@WebnerdMay 15.2006 — try just this
[code=php]
<?
print "Last modified " . date("l, dS F, Y ", filemtime(__FILE__));
?>
[/code]
.

__FILE__ is a PHP constant for the current file. Using $_SERVER["PHP_SELF"] won't always work as anticipated as it pulls the resulting PHP file name and not the served file name
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@askohenauthorMay 16.2006 — try just this
[code=php]
<?
print "Last modified " . date("l, dS F, Y ", filemtime(__FILE__));
?>
[/code]
[/QUOTE]

Ok. I tried the above two examples, both of which appear not to work. My directory structure for now is simple. My all my php files including includes are in the same directory for now. As a test of the last suggested script, I added the following arguments to the date() function, so that the include now reads:

<?php

print "Last modified " . date("l, dS F, Y, G i", filemtime(__FILE__));

?>

This way I can check the time and test the script. It appears that the script offered by webnerd is returning the last modified date of the include file, not the file that is calling the include.
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@WebnerdMay 16.2006 — That is correct, it returns the actual date of the include file. If you want the date of the processing file, you would use:

filemtime(realpath($_SERVER["PHP_SELF"]))
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@NogDogMay 16.2006 — Include file (mtime.php):
[code=php]
<?php
function last_mod($file)
{
printf("<p id='last_mod'>Last modified: %s</p>n",
date("l, dS F, Y, G:i:s", filemtime($file)));
}
?>
[/code]
Main file:
[code=php]
<?php if(include "mtime.php") { last_mod(__FILE__); } ?>
[/code]
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