touch
(PHP 4, PHP 5, PHP 7)
touch — Sets access and modification time of file
Description
$filename
[, int $time
= time()
[, int $atime
]] ) : bool
Attempts to set the access and modification times of the file named in the
filename
parameter to the value given in
time
.
Note that the access time is always modified, regardless of the number
of parameters.
If the file does not exist, it will be created.
Parameters
-
filename
-
The name of the file being touched.
-
time
-
The touch time. If
time
is not supplied, the current system time is used. -
atime
-
If present, the access time of the given filename is set to the value of
atime
. Otherwise, it is set to the value passed to thetime
parameter. If neither are present, the current system time is used.
Changelog
Version | Description |
---|---|
5.3.0 | It became possible to change the modification time of a directory under Windows. |
Examples
Example #1 touch() example
<?php
if (touch($filename)) {
echo $filename . ' modification time has been changed to present time';
} else {
echo 'Sorry, could not change modification time of ' . $filename;
}
?>
Example #2 touch() using the time
parameter
<?php
// This is the touch time, we'll set it to one hour in the past.
$time = time() - 3600;
// Touch the file
if (!touch('some_file.txt', $time)) {
echo 'Whoops, something went wrong...';
} else {
echo 'Touched file with success';
}
?>
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-function.touch.html
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References
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