SplFileObject::fwrite

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

SplFileObject::fwriteWrite to file

Descrição

public SplFileObject::fwrite(string $data, int $length = 0): int|false

Writes the contents of string to the file

Parâmetros

data

The string to be written to the file.

length

If the length argument is given, writing will stop after length bytes have been written or the end of string is reached, whichever comes first.

Valor Retornado

Returns the number of bytes written, or false on error.

Changelog

Versão Descrição
7.4.0 The function now returns false instead of zero on failure.

Exemplos

Exemplo #1 SplFileObject::fwrite() example

<?php
$file 
= new SplFileObject("fwrite.txt""w");
$written $file->fwrite("12345");
echo 
"Wrote $written bytes to file";
?>

O exemplo acima irá imprimir algo similar à:

Wrote 5 bytes to file

Veja Também

  • fwrite() - Escrita binary-safe em arquivos

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User Contributed Notes 1 note

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15
bas dot hilbers at tribal-im dot com
8 years ago
Your \SplFileObject will not throw an exception when trying to write to a non-writeable stream!

I forgot to set the second parameter on my \SplFileObject constructor (the mode), costing me minutes to figure out why nothing was writter by the fwrite method...

Just to let you know!
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