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fsync

(PHP 8 >= 8.1.0)

fsync — Synchronizes changes to the file (including meta-data)

Descrizione

fsync(resource $stream): bool

This function synchronizes changes to the file, including its meta-data. This is similar to fflush(), but it also instructs the operating system to write to the storage media.

Elenco dei parametri

stream

Il puntatore al file deve essere valido, e deve puntare ad un file aperto con successo da fopen() o fsockopen() (e non ancora chiuso da fclose()).

Valori restituiti

Restituisce true in caso di successo, false in caso di fallimento.

Esempi

Example #1 fsync() example

<?php

$file = 'test.txt';

$stream = fopen($file, 'w');
fwrite($stream, 'test data');
fwrite($stream, "\r\n");
fwrite($stream, 'additional data');

fsync($stream);
fclose($stream);
?>

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