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<SplFileObject::flockSplFileObject::fputcsv>
^SplFileObjectLast updated: Mon, 26 Oct 2026

SplFileObject::fpassthru

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

SplFileObject::fpassthru — Output all remaining data on a file pointer

Description

public function SplFileObject::fpassthru(): int

Reads to EOF on the given file pointer from the current position and writes the results to the output buffer.

You may need to call SplFileObject::rewind() to reset the file pointer to the beginning of the file if you have already written data to the file.

Parameters

This function has no parameters.

Return Values

Returns the number of characters read from handle and passed through to the output.

Examples

Example #1 SplFileObject::fpassthru() example

<?php

// Open the file in binary mode
$file = new SplFileObject("./img/ok.png", "rb");

// Send the right headers
header("Content-Type: image/png");
header("Content-Length: " . $file->getSize());

// Dump the picture and end script
$file->fpassthru();
exit;

?>

See Also

  • fpassthru() - Output all remaining data on a file pointer


<SplFileObject::flockSplFileObject::fputcsv>
^SplFileObjectLast updated: Mon, 26 Oct 2026