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Request #51063 Add getimagesizefromstring
Submitted: 2010-02-16 21:54 UTC Modified: 2010-05-05 15:40 UTC
From: bfrance@php.net Assigned: pajoye (profile)
Status: Closed Package: GetImageSize related
PHP Version: 5.3.1 OS:
Private report: No CVE-ID: None
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 [2010-02-16 21:54 UTC] bfrance@php.net 
Description:
------------
It would be nice to be able to pass in a string to getimagesize.

Here is a patch that takes the original getimagesize function and turns it into php_getimagesize_from_stream.  Then getimagesize and a new function getimagesizefromstring can use the function once a stream is created.

http://www.brianfrance.com/software/php/getimagesizefromstring.diff



Reproduce code:
---------------
<?PHP
$img = 'test.gif';

var_dump(getimagesize($img));

$data = file_get_contents($img);

var_dump(getimagesizefromstring($data));
?>

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 [2010-02-17 03:59 UTC] bfrance@php.net 
Here is a test for the new function:

http://www.brianfrance.com/software/php/getimagesizefromstring/001.phpt

and the required test.gif (php logo image):

http://static.php.net/www.php.net/images/php.gif
 [2010-02-17 14:25 UTC] pajoye@php.net 
Will apply it shortly after review (probably this WE). However it looks good already, thanks :)
 [2010-03-06 12:01 UTC] kalle@php.net 
Patch looks good except for one thing, that is the parameter parsing. You should 
use something along the lines of:

char *file;
int file_len;
HashTable *ht;

if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMS_CC, "s|H", &file, &file_len, 
&ht) == FAILURE)

The old (and deprecated) way of first doing a switch and use 
zend_get_parameters*() should be avoided.

Else good work on the patch ;)
 [2010-05-05 10:17 UTC] pajoye@php.net
-Package: Feature/Change Request +Package: GetImageSize related
 [2010-05-05 15:37 UTC] pajoye@php.net 
Automatic comment from SVN on behalf of pajoye
Revision: http://svn.php.net/viewvc/?view=revision&amp;revision=299021
Log: - #51063, implement getimagesizefromstring
 [2010-05-05 15:39 UTC] pajoye@php.net 
Automatic comment from SVN on behalf of pajoye
Revision: http://svn.php.net/viewvc/?view=revision&amp;revision=299022
Log: - #51063, news and test
 [2010-05-05 15:40 UTC] pajoye@php.net
-Status: Assigned +Status: Closed
 [2010-05-05 15:40 UTC] pajoye@php.net 
This bug has been fixed in SVN.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.

Applied a slightly cleaner patch.

Thanks for your work!
 
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