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

SplFileObject::fwriteWrite to file


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

Writes the contents of string to the file

Elenco dei parametri


The string to be written to the file.


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.

Valori restituiti

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

Log delle modifiche

Versione Descrizione
7.4.0 The function now returns false instead of zero on failure.


Example #1 SplFileObject::fwrite() example

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

Il precedente esempio visualizzerĂ  qualcosa simile a:

Wrote 5 bytes to file

Vedere anche:

  • fwrite() - Scrive un file salvaguardando la corrispondenza binaria

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User Contributed Notes 1 note

bas dot hilbers at tribal-im dot com
9 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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