Is there some way to get the dimensions of an image, given the binary
data of the image, without having to write it to a temporary file?
It seems that getimagesize() will only take a filename, but since I have
to download the image from a remote URL with fsockopen(), I have it
stored as a binary string.
I've had a cursory glance at the data, but predictably the size is not
stored in decimal format anywhere...
--
cb 3 12991
On 26 Jun, 08:31, Christoph Burschka <christoph.burs c...@rwth-
aachen.dewrote:
Is there some way to get the dimensions of an image, given the binary
data of the image, without having to write it to a temporary file?
It seems that getimagesize() will only take a filename, but since I have
to download the image from a remote URL with fsockopen(), I have it
stored as a binary string.
I've had a cursory glance at the data, but predictably the size is not
stored in decimal format anywhere...
--
cb
If the image format is supported by your GD Library, you can use the
following:
<?php
$binary_data = file_get_conten ts('http://www.google.co.u k/intl/en_uk/
images/logo.gif');
$im = imagecreatefrom string($binary_ data);
$width = imagesx($im);
$height = imagesy($im);
print "width: $width\n";
print "height: $height\n";
?> ja*********@goo glemail.com wrote:
On 26 Jun, 08:31, Christoph Burschka <christoph.burs c...@rwth-
aachen.dewrote:
>Is there some way to get the dimensions of an image, given the binary data of the image, without having to write it to a temporary file?
It seems that getimagesize() will only take a filename, but since I have to download the image from a remote URL with fsockopen(), I have it stored as a binary string.
I've had a cursory glance at the data, but predictably the size is not stored in decimal format anywhere...
-- cb
If the image format is supported by your GD Library, you can use the
following:
<?php
$binary_data = file_get_conten ts('http://www.google.co.u k/intl/en_uk/
images/logo.gif');
$im = imagecreatefrom string($binary_ data);
$width = imagesx($im);
$height = imagesy($im);
print "width: $width\n";
print "height: $height\n";
?>
Someone correct me if I am wrong, but whenever you open an image/file to
read (even if you want to read the headers) you are storing it to some
temporary buffer/space on your machine!
Maybe the GD solution above is the best!
Armand
Armand Brahaj wrote:
ja*********@goo glemail.com wrote:
>On 26 Jun, 08:31, Christoph Burschka <christoph.burs c...@rwth- aachen.dewrote :
>>Is there some way to get the dimensions of an image, given the binary data of the image, without having to write it to a temporary file?
It seems that getimagesize() will only take a filename, but since I have to download the image from a remote URL with fsockopen(), I have it stored as a binary string.
I've had a cursory glance at the data, but predictably the size is not stored in decimal format anywhere...
-- cb
If the image format is supported by your GD Library, you can use the following:
<?php
$binary_data = file_get_conten ts('http://www.google.co.u k/intl/en_uk/ images/logo.gif');
$im = imagecreatefrom string($binary_ data);
$width = imagesx($im); $height = imagesy($im);
print "width: $width\n"; print "height: $height\n";
?>
Someone correct me if I am wrong, but whenever you open an image/file to
read (even if you want to read the headers) you are storing it to some
temporary buffer/space on your machine!
Maybe the GD solution above is the best!
Armand
Yeah, so I'd be downloading the image data, saving it to a temporary
file, reading the temp file into the buffer and getting the header. Not
exactly efficient.
Thanks for imagecreatefrom string(); that was exactly the function I was
looking for!
--
cb This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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