warnings

问题 This question already has answers here : How to fix “Headers already sent” error in PHP (11 answers) Closed 6 years ago . I'm getting this: Warning: Cannot modify header information - headers already sent by (output started at /www/zxq.net/a/l/e/alexchen/htdocs/index.php:12) in /www/zxq.net/a/l/e/alexchen/htdocs/common.php on line 13 right on my h2 tag. I have my common.php before the html code. I don't know what the problem is. Help! index.php: <?php include_once 'common.php'; ?> <!DOCTYPE

问题 Hey guys I added this question to a similar post: Why is there: Warning: printf(): Too few arguments on line 59 and was told to open a new question. My program still compiles and runs but keep getting this red underline on a simple printf statement saying too few arguments . But its just outputting a message no arguments are needed. printf("Demonstrating use of operators with an integer variable called 'operation'...\n"); //<<-Warning printf("operation = %d and -operation = %d\n", operation,

问题 I am getting some warnings when compiling a C program on OSX 10.6.5, which seem to be quite critical. extras.c:15: warning: implicit declaration of function ‘time’ extras.c: In function ‘outlog’: extras.c:363: warning: implicit declaration of function ‘ctime’ The corresponding lines are as follows: Lines 13-15: RANDNUMGEN = gsl_rng_alloc(gsl_rng_taus); long t1; (void) time(&t1); Lines 360-363: if (LOG==NULL) { LOG=stdout;} TVAL = time(NULL); char* TIMESTRING = ctime(&TVAL); I believe the

问题 I'm trying to use "assign" function, inside a for loop, to assign the value of a file to one variable. When I call the function, it brings the correct answer but in the end it gives me the following warning messages: In assign(fileList, read.csv(fileList[i])) : only the first element is used as variable name If I run > corr("specdata", 129) I can see the correct answer, it can print all the right values, but If I assign the values to any variable for example, it says that this variable is

问题 I'm trying to use "assign" function, inside a for loop, to assign the value of a file to one variable. When I call the function, it brings the correct answer but in the end it gives me the following warning messages: In assign(fileList, read.csv(fileList[i])) : only the first element is used as variable name If I run > corr("specdata", 129) I can see the correct answer, it can print all the right values, but If I assign the values to any variable for example, it says that this variable is

问题 I am a beginner, so please bear with me. I make a violin plot with "five violins" but because of some reason, the last violin is not drawn and I get the error message: /home/leo/anaconda3/lib/python3.6/site-packages/numpy/ma/core.py:4185: UserWarning: Warning: converting a masked element to nan. I don't understand why I get this message because I didn't use a mask for any array. So what does it actually mean? Also some more warnings like: Invalid value encountered in percentile I guess it is

问题 I have read all topics regarding strpos() issues but I cant find one that will fix mine. So here is the code. foreach($titles_array as $k=>$v) { if(strpos($subject,$v) !== false) { $i++; $asd[$titles['id']] = $i; } } The script works good and I get the results I'm looking for but this error comes up : Warning: strpos() [function.strpos]: Empty delimiter I read that it might be an empty string or value in array but I've checked them both and I didnt found any empty string/value. I appreciate

问题 When I make the project with .htaccess file, I got an error. The first error is include(D:\learnphp\drupal-7.43\site\pages): failed to open stream: Permission denied in D:\learnphp\site\index.php on line 18 The second one is include(): Failed opening 'pages/' for inclusion (include_path='.;C:\Program Files (x86)\DevDesktop\common\pear') in D:\learnphp\drupal-7.43\site\index.php on line 18 Here is my index.php <?php // Moved functions to their own file so we can use them in page files. include

问题 When I make the project with .htaccess file, I got an error. The first error is include(D:\learnphp\drupal-7.43\site\pages): failed to open stream: Permission denied in D:\learnphp\site\index.php on line 18 The second one is include(): Failed opening 'pages/' for inclusion (include_path='.;C:\Program Files (x86)\DevDesktop\common\pear') in D:\learnphp\drupal-7.43\site\index.php on line 18 Here is my index.php <?php // Moved functions to their own file so we can use them in page files. include

问题 Eclipse says: Type safety: Unchecked cast from Object to ObjectArrayList<Car> when I do: final ObjectArrayList<Car> icars = (ObjectArrayList<Car>) cars[i]; where cars is defined as: final Object[] cars = new Object[1000]; for (int i = 0; i < 1000; i++) { cars[i] = new ObjectArrayList<Car>(); } Eclipse suggests to add @SuppressWarnings("unchecked") to icars object. But I've read somewhere that annotations are deprecated in Java, so should I leave it as it is? 回答1: The warning is just, well,