Re: what is the main difference between fread() and readfile()?

On Sun, Aug 10, 2014 at 6:31 PM, Negin Nickparsa <nickparsa@gmail.com> wrote: > fread > (PHP 4, PHP 5) > > fread — Binary-safe file read > Description ¶ > < > > http://us1.php.net/manual/en/function.fread.php#refsect1-function.fread-description > > > string fread ( resource $handle , int $length ) > > fread() reads up to length bytes from the file pointer referenced by > handle. > Reading stops as soon as one of the following conditions is met: > readfile > > (PHP 4, PHP 5) > > readfile — Outputs a file > Description ¶ > < > > http://us3.php.net/manual/en/function.readfile.php#refsect1-function.readfile-description > > > int readfile ( string $filename [, bool $use_include_path = false [, > resource $context ]] ) > > Reads a file and writes it to the output buffer. > > in which condition it's better to use them? I confronted a question that is > asking which of the following functions reads the entire contents of a > file? > > A.fgets > > B.file_get_contents > > C.fread() > > D.readfile() > > E.file() > > in my opinion the answer is B,C,D,E > > but the answer key is telling me the answer is B,D,E so fread for some > reason is not the answer and I cannot understand. > > *john coggshall and Marco Tabini test book* > file_get_contents, file, and readfile all take the filename location as oppose to fgets/fread which require file pointers - requiring you to open the file first (via fopen for example).