note 102718 deleted from function.exif-read-data by danbrown
| From: | danbrown@php.net | Date: | Wed, 02 Mar 2011 01:54:57 +0000 |
| Subject: | note 102718 deleted from function.exif-read-data by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-177480@lists.php.net to get a copy of this message | ||
Note Submitter: Vital
----
<?
// Touch file $image_file and set creation date based on date from EXIF
//
// @return Integer
// NULL - if no EXIF data
// 1 - creation date changed
// 2 - no change needed (same dates)
// 0 - colud not touch
function touch_exif($image_file)
{
$info=exif_read_data($image_file);
if (!$info) return NULL;
$datetime=isset($info['DateTime'])?
$info['DateTime']:
(isset($info['DateTimeOriginal'])?
$info['DateTimeOriginal']:
(isset($info['DateTimeDigitized'])?
$info['DateTimeDigitized']:
false));
$filetime=isset($info['FileDateTime'])?
$info['FileDateTime']:
false;
if(!$datetime) return NULL;
//0 yyyy:mm:dd, 1 hh:mm:ss
$datetime=explode(' ',$datetime);
list($y,$m,$d)=explode(':', $datetime[0]);
list($hh,$mm,$ss)=explode(':', $datetime[1]);
$datetime=mktime($hh, $mm, $ss, $m, $d, $y, 0);
if ($datetime==$filetime) return 2;
return (int)touch($argv[1], $datetime);
}
?>
Example of usage. Command line creation date changer.
<?
if($argc<2) die('Usage: php '.$argv[0].' image_name.jpg');
switch (touch_exif($argv[1]))
{
case NULL:die('EXIF date not found');
case 0:die('Fail. Do i have access?');
case 1:die('Success');
case 2:die('No change needed');
}
?>