Usage and Example of PHP readfile() Function

The readfile() function can read a file and write it to the output buffer. If successful, this function can return the number of bytes read; if failed, it returns false and an error. We can hide the error output by adding a "@" symbol before the function name.

Syntax

int readfile ( string $filename [, bool $use_include_path = FALSE [, resource $context ]] )

This function can read a file and write it to the output buffer. If the fopen() function wrapper is enabled in the php.ini file, the URL of this function can be used as the filename.

Online Example

<?php
   echo readfile("/PhpProject/sample.txt");
?>

Output Result

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