Backing Up, updating, and restoring your iPhone and iPod touch software


 
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Operating Systems OS X (Apple) OS X Support RSS Backing Up, updating, and restoring your iPhone and iPod touch software
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Old 11-13-2008
Backing Up, updating, and restoring your iPhone and iPod touch software

This article explains how to use iTunes to back up, update and/or restore your iPhone or iPod touch. In order to get best results, always make sure you have the latest version of iTunes installed and running before attempting to update or restore your iPhone or iPod touch.

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TOUCH(3)								 1								  TOUCH(3)

touch - Sets access and modification time of file

SYNOPSIS
bool touch (string $filename, [int $time = time()], [int $atime]) DESCRIPTION
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
o $filename - The name of the file being touched. o $time - The touch time. If $time is not supplied, the current system time is used. o $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 the $time parameter. If neither are present, the current system time is used. RETURN VALUES
Returns TRUE on success or FALSE on failure. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.3.0 | | | | | | | It became possible to change the modification | | | time of a directory under Windows. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 touch(3) example <?php if (touch($filename)) { echo $filename . ' modification time has been changed to present time'; } else { echo 'Sorry, could not change modification time of ' . $filename; } ?> Example #2 touch(3) 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'; } ?> NOTES
Note Note that time resolution may differ from one file system to another. Warning Prior to PHP 5.3.0 it was not possible to change the modification time of a directory with this function under Windows. PHP Documentation Group TOUCH(3)