PHP fread() Function Usage and Example

PHP Filesystem Reference Manual

The fread() function can read data from the opened file. This function can stop at the end of the file or at the specified length, whichever comes first. The function can return the read string or false if it fails.

Syntax

string fread ( resource $handle , int $length )

The fread() function can read the maximum number of bytes from the file pointer referenced by the handle.

Example1

<?php
　　　$filename = "sample.txt";
　　　$handle = fopen($filename, "r");
　　　echo fread($handle, "30);　　　
　　　fclose($handle);
?>

Output result

w3codebox
Tutorix
Hello

Example2

<?php
　　　$filename = "sample.txt";
　　　$file = fopen($filename, "r");
　　　
　　　$contents = fread($file, filesize($filename));
　　　echo　$contents;
　　　
　　　fclose($file);
?>

Output result

w3codebox
Tutorix
Hello　oldtoolbag.com!!!!

PHP Filesystem Reference Manual