Re: [PHP] Problems creating images
On Wed, April 5, 2006 2:42 pm, Age Bosma wrote: *confirm_image.php:* Your browser and webserver see confirm_image.php in the URL. Header(Content-type: image/jpeg); REAL browsers like Mozilla and Firefox etc trust this. Microsoft, however, in its infinite wisdom, ignores standards-compliant Content-type: headers and guesses at the content type from the URL. Thus, odds are really good that some versions of IE on some versions of MS will decide that your image must be a JPEG. The only generalized solution I know of is to make sure you IMG tag *ends* with .jpg imt src=confirm_image.php/ie_sucks.jpg / IE (some versions) will see the .jpg and know it's a JPEG, and ignore the Content-type: ImageString ($image, 5, 12, 2, $code, $text_color); ImageJPEG($image, '', 75); ImageDestroy($image); Most people get a nice image but some people get only, what appears to be, garbage: ÿØÿàJFIFÿþ;CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), XXX The stuff above XXX... That doesn't look like valid JPEG starting characters in my experience... PERHAPS they're fine, or part of some new standard, but every JPEG I ever saw started with the stuff above It's possible that your code_bg.jpg has EXIF data and/or is a progressive JPEG, and that GD preserves that info, and that some browsers are incapable of displaying such a JPEG. For the complete output have a look here: http://www.samuel-area.de/phpbook/confirm_image.php The crucial thing here is that SOMETHING is forcing some kind of output and the Content-type: is being set to text/html on that server for that URL: -bash-2.05b$ telnet www.samuel-area.de 80 Trying 82.149.248.196... Connected to www.samuel-area.de. Escape character is '^]'. GET /phpbook/confirm_image.php HTTP/1.0 Host: www.samuel-area.de HTTP/1.1 200 OK Date: Fri, 14 Apr 2006 00:02:11 GMT Server: Apache/2.0.53 (Fedora) X-Powered-By: PHP/4.3.11 Content-Length: 1519 Connection: close Content-Type: text/html; charset=iso-8859-1 JFIF;CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 75 C $.' ,#(7),01444'9=82.342C Do you know what is going wrong here? So, most definitely, in this case, something is configured incorrectly on that server to over-ride your header() call and it's spewing out the JPEG as if it were HTML. My first guess would be some kind of security setting/module which is trying to be smart about .php which is forcing the final output Content-type: to be text/html, even though PHP is perfectly capable of generating ANY kind of content. Since it's an Apache server, if the trick above (end URL in .jpg) does not work, you could try this: #1 mv confirm_image.php confirm_image.jpg Now the URL will look JUST like a .jpg to everybody. #2 Edit a file .htaccess in that same directory as confirm_image.php and add this to it: Files confirm_image.jpg ForceType application/x-httpd-php /Files Now Apache knows that this particular .jpg file should be passed through PHP to generate output. #3 Change your IMG tag to point to: confirm_image.jpg If that STILL doesn't fix it, you're going to have to get the administrator of that server to figure out why their server insists on spewing out Content-type: text/html for a dynamic JPEG. -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: Re[2]: [PHP] Problems creating images
On Thu, April 6, 2006 5:24 pm, Tom Rogers wrote: put error_reporting( E_ALL); at the top of the script and see if any error messages show up. The fact that the mime type is text seems to indicate some output has gone to the client before your header call. That could be any white space outside of ?php..? and could be in an include file or prepend file as well. Actually, if it's an auto_prepend file, you'll need to change the reporting level in .htaccess, or it's too late by the time your script starts executing, no? php_value error_reporting 2047 Note: I don't think E_ALL is kosher in .htaccess, so I used the value of E_ALL my PHP reports from: php -r 'echo E_ALL, \n;' I think E_ALL changed value at some point, though... Maybe you can have your client put up a ?php echo E_ALL;? page. -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Problems creating images
Tom Rogers wrote: Make sure you don't have any blank lines before the ?php There isn't. I've got the suspicion it's got to do with the UTF-8 character encoding because of the characters '', I've seen this before with HTML pages. Because of this I asked the person who's having the problems to upload and test three different files versions of the php file: - ANSI - UTF-8 - ANSI UTF-8 without BOM None had any effect what so ever. What else can I try? Philip Hallstrom pointed out that the returning header is set to 'Content-Type: text/html; charset=iso-8859-1' instead of 'Content-type: image/jpeg'. What could be the cause of this? Yours, Age -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re[2]: [PHP] Problems creating images
Hi, Friday, April 7, 2006, 6:20:41 AM, you wrote: AB Tom Rogers wrote: AB There isn't. I've got the suspicion it's got to do with the UTF-8 AB character encoding because of the characters '', I've seen this AB before with HTML pages. Because of this I asked the person who's having AB the problems to upload and test three different files versions of the AB php file: AB - ANSI AB - UTF-8 AB - ANSI UTF-8 without BOM AB None had any effect what so ever. What else can I try? AB Philip Hallstrom pointed out that the returning header is set to AB 'Content-Type: text/html; charset=iso-8859-1' instead of 'Content-type: AB image/jpeg'. What could be the cause of this? AB Yours, AB Age put error_reporting( E_ALL); at the top of the script and see if any error messages show up. The fact that the mime type is text seems to indicate some output has gone to the client before your header call. That could be any white space outside of ?php..? and could be in an include file or prepend file as well. -- regards, Tom -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Problems creating images
I added image confirmation to a guestbook and even though it works greate for most people, some people have problem and I can't seem to figure out why this happens. Note that I'm not talking about the same guestbook on one server but the guestbook is on people's own hosting server. The php code to create the image can't be simpler: *confirm_image.php:* $datekey = date(F j); $rcode = hexdec(md5($_SERVER[HTTP_USER_AGENT] . $cfg_sitekey . $random_num . $datekey)); $code = substr($rcode, 2, 6); $image = ImageCreateFromJPEG(images/code_bg.jpg); $text_color = ImageColorAllocate($image, 80, 80, 80); Header(Content-type: image/jpeg); ImageString ($image, 5, 12, 2, $code, $text_color); ImageJPEG($image, '', 75); ImageDestroy($image); Most people get a nice image but some people get only, what appears to be, garbage: JFIF;CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 75 C $.' ,# (7),01444 '9=82.342C 2! !22 ...snip... For the complete output have a look here: http://www.samuel-area.de/phpbook/confirm_image.php Do you know what is going wrong here? Not entirely, but when I go to that URL and check the headers (Live HTTP header extension in firefox) I get this: HTTP/1.x 200 OK Date: Wed, 05 Apr 2006 20:02:02 GMT Server: Apache/2.0.53 (Fedora) X-Powered-By: PHP/4.3.11 Content-Length: 1501 Connection: close Content-Type: text/html; charset=iso-8859-1 Notice that last one... I see you set it up above, but it isn't sticking -philip -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Problems creating images
Hi, I added image confirmation to a guestbook and even though it works greate for most people, some people have problem and I can't seem to figure out why this happens. Note that I'm not talking about the same guestbook on one server but the guestbook is on people's own hosting server. The php code to create the image can't be simpler: *confirm_image.php:* $datekey = date(F j); $rcode = hexdec(md5($_SERVER[HTTP_USER_AGENT] . $cfg_sitekey . $random_num . $datekey)); $code = substr($rcode, 2, 6); $image = ImageCreateFromJPEG(images/code_bg.jpg); $text_color = ImageColorAllocate($image, 80, 80, 80); Header(Content-type: image/jpeg); ImageString ($image, 5, 12, 2, $code, $text_color); ImageJPEG($image, '', 75); ImageDestroy($image); Most people get a nice image but some people get only, what appears to be, garbage: ÿØÿàJFIFÿþ;CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 75 ÿÛC $.' ,# (7),01444 '9=82.342ÿÛC 2! !22ÿÀ ...snip... For the complete output have a look here: http://www.samuel-area.de/phpbook/confirm_image.php Do you know what is going wrong here? Yours, Age -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Problems creating images
Hi, Thursday, April 6, 2006, 5:42:05 AM, you wrote: AB Hi, AB I added image confirmation to a guestbook and even though it works AB greate for most people, some people have problem and I can't seem to AB figure out why this happens. Note that I'm not talking about the same AB guestbook on one server but the guestbook is on people's own hosting server. AB The php code to create the image can't be simpler: AB *confirm_image.php:* AB $datekey = date(F j); AB $rcode = hexdec(md5($_SERVER[HTTP_USER_AGENT] . $cfg_sitekey . AB $random_num . $datekey)); AB $code = substr($rcode, 2, 6); AB $image = ImageCreateFromJPEG(images/code_bg.jpg); AB $text_color = ImageColorAllocate($image, 80, 80, 80); AB Header(Content-type: image/jpeg); AB ImageString ($image, 5, 12, 2, $code, $text_color); AB ImageJPEG($image, '', 75); AB ImageDestroy($image); AB Most people get a nice image but some people get only, what appears to AB be, garbage: AB ÿØÿàJFIFÿþ;CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), AB quality = 75 ÿÛC $.' AB ,# (7),01444 '9=82.342ÿÛC AB 2! !22ÿÀ AB ...snip... AB For the complete output have a look here: AB http://www.samuel-area.de/phpbook/confirm_image.php AB Do you know what is going wrong here? AB Yours, AB Age Make sure you don't have any blank lines before the ?php -- regards, Tom -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
