EXIF I have a problem

[Mohawk Mawk]

Hey guys...
I have a image string I want to read with exif_read_data( ) but
exif_read_data( ) does not read strings, only files.
i can display the picture via php
Header( "Content-type: image/jpg"); echo $string;
save it manually and then read the meta data like this

function EXIFALL($img){
$exif = exif_read_data( $img, 0, true);
echo "myimage.jpg:<b r />\n";
foreach ($exif as $key =$section) {
foreach ($section as $name =$val) {
echo "$key.$name : $val<br />\n";
}}return;}
(code from http://th.php.net/manual/en/function.exif-read-data.php)

and it will read out the meta data like i want it.
but i would like to read the meta data from the string without my
interaction!

so I tried this

imagejpeg(image createfromstrin g($string),'tem p.jpg');
EXIFALL('temp.j pg');
unlink ('temp.jpg');

witch creates a temporary.jpg reads it and then deletes it.
but the function imagejpeg() replaces the important meta data from my
original image that i want to read.

what should i do?
thanks for your help

[=?ISO-8859-15?Q?Iv=E1n_S=E1nchez_Ortega?=]

Re: EXIF I have a problem

Mohawk Mawk wrote:

imagejpeg(image createfromstrin g($string),'tem p.jpg');
EXIFALL('temp.j pg');
unlink ('temp.jpg');
>
witch creates a temporary.jpg reads it and then deletes it.
but the function imagejpeg() replaces the important meta data from my
original image that i want to read.

Try file_put_conten ts($string,'tem p.jpg') instead of
imagecreatejpeg (imagecreatefro mstring()).

Remember to use some kind of lock on your temporary files, or give them
random names, to avoid concurrency issues.

Hope that helps,
--
----------------------------------
Iván Sánchez Ortega -ivansanchez-algarroba-escomposlinux-punto-org-

Q: How do you shoot a blue elephant?
A: With a blue-elephant gun.

Q: How do you shoot a pink elephant?
A: Twist its trunk until it turns blue, then shoot it with
a blue-elephant gun.

[Mohawk Mawk]

Re: EXIF I have a problem

what should i do?

thanks for your help

to be more clear i want to either create a jpg from a stream without
the metadata to be written, o be able to read the metadata directly
from the stream, witch exif_read_data( ) does not do.

[Mohawk Mawk]

Re: EXIF I have a problem

Try file_put_conten ts($string,'tem p.jpg') instead of
imagecreatejpeg (imagecreatefro mstring()).

I tried this but what happens is it creates a 8 byte file named ÿØÿà
(witch are the first charachters of my string)

[=?ISO-8859-15?Q?Iv=E1n_S=E1nchez_Ortega?=]

Re: EXIF I have a problem

Mohawk Mawk wrote:

>

>Try file_put_conten ts($string,'tem p.jpg') instead of
>imagecreatejpe g(imagecreatefr omstring()).

>
I tried this but what happens is it creates a 8 byte file named ÿØÿà
(witch are the first charachters of my string)

Sorry, I can't remember the syntax of every function... Try
file_put_conten ts('temp.jpg',$ string)

--
----------------------------------
Iván Sánchez Ortega -ivansanchez-algarroba-escomposlinux-punto-org-

Now listening to: Plaid - Spokes (2003) - [8] Get What You Gave (5:16) (95%)

[Mohawk Mawk]

Re: EXIF I have a problem

On May 5, 8:10 pm, Iván Sánchez Ortega <ivansanchez-...@rroba-
escomposlinux.-.punto.-.orgwrote:

Mohawk Mawk wrote:
>

Try file_put_conten ts($string,'tem p.jpg') instead of
imagecreatejpeg (imagecreatefro mstring()).

>

I tried this but what happens is it creates a 8 byte file named ÿØÿà
(witch are the first charachters of my string)

>
Sorry, I can't remember the syntax of every function... Try
file_put_conten ts('temp.jpg',$ string)
>
--
----------------------------------
Iván Sánchez Ortega -ivansanchez-algarroba-escomposlinux-punto-org-
>
Now listening to: Plaid - Spokes (2003) - [8] Get What You Gave (5:16) (95%)

haha sorry my bad, thank you very much it worked, i also found that i
could do fwrite(fopen("t emp.jpg", 'a'),$string); but that would not
create the file so i cant unlink it. i will take your advice and
generate random names, thank you again