Files And Stream

Question 0

What is ‘a’ mode for fopen() function used for?

Answer 0

‘a’ is for Open for writing only; place the file pointer at the end of the file. If the file does not exist, attempt to create it.

Question 1

What method is used for opening file or URL?

Answer 1

fopen()

fopen ( string $filename , string $mode [, bool $use_include_path = false [, resource $context ]] )

Question 2

What is function feof(resource $ handle)

Answer 2

feof — Tests for end-of-file on a file pointer and returns Boolean.

Question 3

What does the fgetc() function do?

Answer 3

String fgetc( resource $handle) 
Gets character from file pointer

Question 4

What is the use of the function file_exists() ?

Answer 4

file_exists ( string file name)— Checks whether a file or directory exists.