I'm using cakephp. In my users model I allow ppl to upload a pic. Once it uploads ok I save the url of the pic to $this->data['User']['image_url'] and save it. To upload I use the kind advice given here: http://www.jamesfairhurst.co.uk/posts/view/uploading_files_and_images_with_cakephp
After the upload is done I want to resize the photo so I have a thumbnail. I'm using the advice here: http://bakery.cakephp.org/articles/Perkster/2008/04/12/image-resizer-crop
All is ok, except for the value in $this->data['User']['image_url'] looks like files/photos/userimage.jpg
The upload script I'm using seems to be expecting the urls with backslashes rather than forward ones coz when I run it I get the error
getimagesize(C:\xampp\htdocs\MyNewSite\app\webroot\img\files/photos\$image_name) [function.getimagesize]: failed to open stream:
What can I do to fix this?
The slashes are not the problem, the $image_name is. It's impossible to tell without seeing the code, but you probably are using single quotes when assigning the file name, leading to the variable not getting parsed properly.
Windows accepts both directory separators \ and /, thus the problem must be somewhere else. This is taken from the error message
C:\xampp\htdocs\MyNewSite\app\webroot\img\files/photos\$image_name
I assume, that there is no file $image_name ;) It seems, that you didnt let PHP evaluate the variables when calling getimagesize()
Related
I made a form to upload a file, it was working, but when I made a few tests there was sometimes where it didn't worked very well, after hours arguing against my own code I notice that the problem was the name of the file I was trying to upload, it had parentheses like blablabla(1).png,
what can I do to avoid this trouble?
Thanks in advance.
You can use javascript regular expression to replace those invalid symbols that can cost error for your uploading file before submitting it.
I am having trouble googling this, so please bear with me.
I have a code example that is about uploading files and there is the assignment of a temporary file to an array like this:
$postparam['file1'] = '#../res/example.pdf';
I would like to know what the effect of the # character is. I know about error suppression with # but i am confused about the use inside the string.
Thanks.
I found the answer: The example uses cURL and that is why the # is required as a prefix to the filename.
#filename
This will make curl load data from the given file (including any newlines), URL-encode that data and pass it on in the POST.
Source
Like many others out there i have had my fair share of issues trying to download an Excel file output by PHPExcel.
What happened in my case was whenever I wanted to download a file using
$obj->save('php://output')
i always used to get garbled text in my excel file with a warning saying my file was corrupt. Eventually i resolved the issue. The problem being i had a
require('dbcon.php')
at the top of my php script. I just replaced that with whatever was there inside dbcon.php and it worked fine again.
Though the problem is solved i would really like to know what caused the problem. It would be great if anyone out there could help me out with this one.
Thanks.
If you get that error - you should follow the advice we always give in that situation: you use a text editor to look in the generated file for leading or trailing whitespace, or plaintext error messages - and then in your own scripts for anything that might generate that such as echo statements, blank lines outside ?> <?php, etc.
Another way of testing for this is to save to the filesystem rather than php://output and see if you get the same problem: if that works, then the problem is always something that your own script is sending to php://output as well.
Clearly you had a problem along those lines in your dbcon.php file. This can be as simple as a trailing newline after a closing ?> in the file...
Tanmay.
In situations like your's, there can be couple of reasons for broken output:
in file dbcon.php can be a whitespace before opening or ending php
tag, so that produce some chars to output and can make file broken
(this is reason for using only opening tag in php 5.3+);
maybe file dbcon.php wasn't found by require, so you got error message in otput;
any other errors or notices or warnings in dbcon.php, because presence of global vars from current file..
I've been visiting stackoverflow.com for a long time and always found the solution to my problem. But this time it's different. That's why I'm posting my first question here.
The situation looks like this: My website provides a directory explorer which allows users to download whole directory as a zip file. The problem is I end up with error when I want to download a dir containg special characters in it's name, i.e. 'c++'. I don't want to force users to NOT name their folders with those special chars, so I need a clue on this one. I noticed that the whole problem comes down to GET protocol. I use ajax POST for example to roll out the directory content, but for making a .zip file and downloading it I need GET:
var dir_clicked = $(e.target).attr('path'); //let's say it equals '/c++'
window.location = 'myDownloadSite.php?directory_path='+dir_clicked;
I studied whole track of dir_clicked variable, step by step, and it seems that the variable in adress is sent correctly (I see the correct url in browser) but typing:
echo $_GET['directory_path']
in myDownloadSite.php prints
'/c'
instead of
'/c++'
Why the GET protocol is cutting my pluses?
You can use:
encodeURIComponent() //to get the url then use
decodeURIComponent() //to decode and access ur filename.
Use urlencode() and urldecode() on server side.
Try encoding your URI with encodeURI(url) JavaScript function.
window.location = encodeURI('myDownloadSite.php?directory_path=' + dir_clicked);
Maybe use encodeURIComponent() and then remove all %xx occurrences?
When the information is posted it is encoded with special chars, sounds like you just need to decode them before using the information.
You can use php function urldecode() to decode the folder names before using them...
$_GET[directory_path]=urldecode($_GET[directory_path]);
i have a download.php file which gets and opens files. i have a problem is that files were named using '&' in the file name so i get file not found when trying to access files with '&' in them.
example: download.phpf=one_&_another.pdf
in the download.php file i use get to the the file name ($_GET['f']) the example above throws the error file not found if i change the file name to one_and_another.pdf it works.
Yes renaming would be nice if there wasnt a whole lot of these files named this way.
I need to know how to ignore the fact that '&' doesnt mean im about to pass another var in php.
If you can control the query strings, you need to URL encode the ampersands so they look like this:
download.php?f=one_%26_another.pdf
Then look for $_GET['f'] as usual. Otherwise a literal ampersand & would break $_GET into
{ 'f' => 'one_', '_another.pdf' => '' }
You will probably just need to urlencode() the & properly in your links:
download.php?f=one_%26_another.pdf
Rule number 1 for accepting user input: do not trust it.
Refer to this StackOverflow answer for your solution.