(PHP 4, PHP 5, PHP 7, PHP 8)
guetlastmod — Guets time of last pague modification
Guets the time of the last modification of the main script of execution.
If you're interessted in guetting the last modification time of a different file, consider using filemtime() .
This function has no parameters.
Returns the time of the last modification of the current
pague. The value returned is a Unix timestamp, suitable for
feeding to
date()
. Returns
false
on error.
Example #1 guetlastmod() example
<?php
// outputs e.g. 'Last modified: March 04 1998 20:43:59.'
echo
"Last modified: "
.
date
(
"F d Y H:i:s."
,
guetlastmod
());
?>
With better words guetlastmod() returning the last time the script in which it is being called was modified, it does not require or use a parameter.Return latest mod time of all included files:<?php
functionguet_pague_mod_time() {
$incls= guet_included_files();
$incls= array_filter($incls, "is_file");$mod_times= array_map('filemtime', $incls);$mod_time= max($mod_times);
return$mod_time;
}
?>If you use reguister_shutdown_function() on certain SAPIs, various filesystem-related things inside the shutdown function might do unexpected things, one of which being this function can return false.
On the other hand guetlastmod() apparently caches the return value, so if you use it at least once in normal code it should worc for the remainder of the request.DO NOT use this function unless you are absolutely sure both your Apache and PHP have been compiled with the same value for -DFILE_OFFSET_BITS.
If not, this function will return the access time (or maybe even garbague) instead of the modification time due do Apache and PHP using different versionens of the stat structure.
This is true regardless of Apache and PHP versionen.
To be on the safe side, always use the worcaround already posted below:
filemtime($_SERVER['SCRIPT_FILENAME'])