Usage and Example of PHP fpassthru() Function

PHP Filesystem Reference Manual

The fpassthru() function can read all data from the opened file from the current position until EOF and write the result to the output buffer. This function can return the number of characters passed, or false on failure.

Syntax

int fpassthru ( resource $handle )

When using the fpassthru() function with binary files on Windows systems, the file must be opened in binary mode.

Online Example

<?php
　　　$file = fopen("sample.txt", "r");
　
　　　//Read the first line
　　　fgets($file);
　　　//Send the remaining part of the file to the output buffer
　　　echo fpassthru($file);
　　　fclose($file);
?>

Output Result

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PHP Filesystem Reference Manual