Does fgets stop at EOF?

char *fgets(char *s, int size, FILE *stream); fgets() reads in at most one less than size characters from stream and stores them into the buffer pointed to by s. Reading stops after an EOF or a newline. If a newline is read, it is stored into the buffer. fgets does not allocate any memory.

What does fgets return at EOF?

Upon successful completion, fgets() returns s. If the stream is at end-of-file, the end-of-file indicator for the stream is set and fgets() returns a null pointer. If a read error occurs, the error indicator for the stream is set, fgets() returns a null pointer and sets errno to indicate the error.

What does fgets return PHP?

The fgets() function in PHP is an inbuilt function which is used to return a line from an open file. It is used to return a line from a file pointer and it stops returning at a specified length, on end of file(EOF) or on a new line, whichever comes first.

What does EOF do in PHP?

The feof() function in PHP is an inbuilt function which is used to test for the end-of-file on a file pointer. It checks if the “end-of-file” has been reached or not. The feof() function returns True if end-of-file has been reached or if an error has occurred. Else it returns False.

How does fgets work C?

The fgets() function in C reads up to n characters from the stream (file stream or standard input stream) to a string str ….The fgets() function keeps on reading characters until:

1. (n-1) characters have been read from the stream.
2. a newline character is encountered.
3. end of file (EOF) is reached.

Does fgets add null terminator?

The fgets() function stores the result in string and adds a null character (\0) to the end of the string. The string includes the new-line character, if read. If n is equal to 1, the string is empty. The fgets() function returns a pointer to the string buffer if successful.

How does the fgets ( ) function in PHP work?

It is used to return a line from a file pointer and it stops returning at a specified length, on end of file (EOF) or on a new line, whichever comes first. The file to be read and the number of bytes to be read are sent as parameters to the fgets () function and it returns a string of length -1 bytes from the file pointed by the user.

When to use feof or EOF in PHP?

I found feof () to be a slow function when using a non-blocking connection. The function stream_get_meta_data () returns much quicker and has a return field ‘eof’. On unix/linux, every line in a file has an End-Of-Line (EOL) character and the EOF character is after the last line.

When to use fgets to test for EOF?

The newline character at the end of the input string is considered a valid character by fgets. That means that the length of the string you’re testing would be 1 if you just entered a newline So, you want to move the test inside the loop instead of trying to test for EOF outside of the loop.

Is there a timeout for feof in PHP?

Just found program looping two days in while (!feof ($fd)) fread with 20 seconds timeout in PHP 4.3.10. Return values in the documentation are incorrectly stated.