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Not the answer you're looking for? Deleting my answer in favor of this function. –VolkerK Mar 18 '10 at 14:01 2 No need to delete it. So let's write above program as follows − #include #include main() { int dividend = 20; int divisor = 5; int quotient; if( divisor == 0) { fprintf(stderr, "Division This is true whether it's opened in "r" or "w" mode. (See man 7 fifo: this is the correct, default behaviour; although Linux supports non-blocking fopen() of a fifo, PHP doesn't).

I want to diplay some message, when user selects file with bad name. If you have a focus for your spell casting do you need to pay materials? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Try our newsletter Sign up for our newsletter and get our top new questions delivered to your inbox (see an example).

php error-handling fopen share|improve this question edited Mar 31 at 11:49 Adexe Rivera 13528 asked Mar 18 '10 at 13:48 Roland 8,19248136206 add a comment| 4 Answers 4 active oldest votes How do I say "Thank you, Captain Obvious?" Are there any rules or guidelines about designing a flag? php file error-handling suphp share|improve this question asked Nov 5 '11 at 6:56 puk 6,1091165126 Turn on error reporting? –Josh Nov 5 '11 at 6:58 I totally and strerror() The C programming language provides perror() and strerror() functions which can be used to display the text message associated with errno.

I was not checking the filename part of a concatenated string.

For example:

$fd = fopen('/home/mydir/' . If you have enabled safe mode or open_basedir further restrictions may apply. more hot questions question feed lang-c about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Join them; it only takes a minute: Sign up PHP: fopen error handling up vote 5 down vote favorite 2 I do fetch a file with $fp = fopen('uploads/Team/img/'.$team_id.'.png', "rb"); $str

Program gets executed but prints nothing on cmd. most likely you're not in the directory you think you are from the IDE and don't have the permissions you expect. Return Values Returns a file pointer resource on success, or FALSE on error. If PHP is configured as an apache module it will act as whatever user the apache is.

Is there a place in academia for someone who compulsively solves every problem on their own? I was hoping that Visual Studio would give me more luck. share|improve this answer edited Mar 18 '10 at 14:02 answered Mar 18 '10 at 13:51 Your Common Sense 109k19103178 add a comment| up vote 0 down vote $fh = fopen($path, 'r') What's the best version? [Question 2] If I must handle more errors, is it correct a code like this?

How do I say "Thank you, Captain Obvious?" Review paper/book on Finite Difference Methods for PDEs Framing "standalone" class output with "framed" and others Why can't I do ls -a 1>&-? I was hoping that Visual Studio would give me more luck. This just bit me. If the file does not exist, attempt to create it.

c file-io fopen stdio share|improve this question edited Jul 1 at 11:48 unwind 254k38332460 asked Nov 17 '09 at 4:05 jet 53115 add a comment| 8 Answers 8 active oldest votes Most of the C or even Unix function calls return -1 or NULL in case of any error and set an error code errno. sprintf("%06s",intval($usec*1000000)).": $data";
$save_path = 'foo.txt';
$fp = @fopen($save_path, 'a'); // open or create the file for writing and append info
fputs($fp, "$msg\n"); // write the data in the What are Imperial officers wearing here?

share|improve this answer answered Nov 17 '09 at 4:45 Dan 66438 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign Nice, didn't know this! –Pekka 웃 Mar 18 '10 at 14:50 +1 again - didn't know about the track_errors ini var, that's handy :-) –richsage Mar 18 '10 at Join them; it only takes a minute: Sign up Error handling in file opening up vote 2 down vote favorite [Question 1] When I open a file into a function, generally Is intelligence the "natural" product of evolution?

If PHP has decided that filename specifies a registered protocol, and that protocol is registered as a network URL, PHP will check to make sure that allow_url_fopen is enabled. Why was the word for king 'rei' changed to 'rey'? Had to do this especially for a shoutcast server, which only delivered the HTML-file if the user-agent was given. up down 1 dan at cleandns dot com ¶12 years ago

A value of 0 indicates that there is no error in the program. If the file does not exist, attempt to create it. 'w+' Open for reading and writing; place the file pointer at the beginning of the file and truncate the file to try { $fileName = 'uploads/Team/img/'.$team_id.'.png'; if ( !file_exists($fileName) ) { throw new Exception('File not found.'); } $fp = fopen($fileName, "rb"); if ( !$fp ) { throw new Exception('File open failed.'); } assist.

To work around this, the value of error_reporting should be lowered to a level that does not include warnings. clearly the path is not empty nor is the path non-existant: C:\ so what i dont get is why dfile is NULL. Can I buy my plane ticket to exit the US to Mexico? How do I fix this?

How should I interpret "English is poor" review when I used a language check service before submission? Open hemisphere is connected Is intelligence the "natural" product of evolution? A better way to evaluate a certain determinant Is it possible to have a habitable planet unsuitable for agriculture? Other than that you can use file_exists and is_readable to check whether the file is missing or there's another (probably permission-related) problem. (*) I consider it good practice to always set

Exiting... It doesn't mean anything actually went wrong; it just means that a test for whether standard output is a terminal failed (because it isn't a terminal). Block for plotting a function using different parameters Is it possible to have a habitable planet unsuitable for agriculture? share|improve this answer answered Nov 17 '09 at 4:11 Richie 5,24921730 Great comments.

IDE: VS 2013. –barnes Oct 2 '15 at 10:10 @barnes, ask a question, don't leave a comment. How do computers remember where they store things? However, many C++ programs and Java programs use true for success and false for failure. I checked the file path and even changed the permissions of the file to 777.

Try using the full path name in the fopen and see if that fixes it. Here's what worked for me:

$returned=URLopen("http://$username:$password@example.com");

function
URLopen(

Can Communism become a stable economic strategy? share|improve this answer edited Apr 10 '11 at 16:59 answered Apr 10 '11 at 14:06 Mat 135k21234273 add a comment| up vote 1 down vote To make it even clearer: f Some protocols (also referred to as wrappers) support context and/or php.ini options. Both available in C libraries and using man share|improve this answer edited Jan 26 at 9:36 Ashish Ahuja ツ 3,58961750 answered Apr 10 '11 at 14:10 seth 1088 +1

Perhaps you want to print the error in main()." But if I use perror into main() I can't differentiate the errors! (Q2d) "If you are returning the result of fclose() on Select seams easy and fast way? These return NULL on error. How do you know that?