Use of fread() in PHP

fread() function in PHP. The fread() function reads from an open file. The fread() function halts at the end of the file or when it reaches the specified length whichever comes first. It returns the read string on success.

1. What does fread () function do in PHP?
2. What is the use of fread function?
3. What is the difference between fread () and fopen () function in PHP?
4. Does fread read whole files?
5. What is Fgets PHP?
6. What is Fclose function in PHP?
7. How do I read a Fread file?
8. How do you write a Fread function?
9. What does fread mean?
10. What are the similarities and differences between fgets () and fread () in PHP?
11. What is Fwrite PHP?
12. What is Fread in C?

What does fread () function do in PHP?

The fread() function in PHP is an inbuilt function which reads up to length bytes from the file pointer referenced by file from an open file. The fread() function stops at the end of the file or when it reaches the specified length passed as a parameter, whichever comes first.

What is the use of fread function?

The fread() function in C++ reads the block of data from the stream. This function first, reads the count number of objects, each one with a size of size bytes from the given input stream. The total amount of bytes reads if successful is (size*count).

What is the difference between fread () and fopen () function in PHP?

Fopen() returns a file handle resource, which is basically the contents of the file. ... To read from a file, the function fread() is used, and to write to a file fwrite() is used. For now we're interested in reading, so you should use "rb" for the second parameter to fopen().

Does fread read whole files?

Reads an array of count elements, each one with a size of size bytes, from the stream and stores them in the block of memory specified by ptr. The position indicator of the stream is advanced by the total amount of bytes read. The total amount of bytes read if successful is (size*count).

What is Fgets 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 is Fclose function in PHP?

The fclose() function in PHP is an inbuilt function which is used to close a file which is pointed by an open file pointer. The fclose() function returns true on success and false on failure. It takes the file as an argument which has to be closed and closes that file. Syntax: bool fclose( $file )

How do I read a Fread file?

Reading a variable from a file using the fread:

Open the file in reading mode. If fopen function, open the file successfully, then using the fread function we can read the value of the variable.

How do you write a Fread function?

The syntax of fread() function is as follows: Syntax: size_t fread(void *ptr, size_t size, size_t n, FILE *fp); The ptr is the starting address of the memory block where data will be stored after reading from the file.

What does fread mean?

Description. The fread() function reads up to count items of size length from the input stream and stores them in the given buffer. The position in the file increases by the number of bytes read.

What are the similarities and differences between fgets () and fread () in PHP?

5 Answers. fgets reads a line -- i.e. it will stop at a newline. fread reads raw data -- it will stop after a specified (or default) number of bytes, independently of any newline that might or might not be present.

What is Fwrite PHP?

The fwrite() function in PHP is an inbuilt function which is used to write to an open file. ... The file, string and the length which has to be written are sent as parameters to the fwrite() function and it returns the number of bytes written on success, or FALSE on failure.

What is Fread in C?

Description. The C library function size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream) reads data from the given stream into the array pointed to, by ptr.