Write to file - Справочник: PHP5.4

public int SplFileObject::fwrite ( string $str [, int $length ] )

Writes the contents of string to the file

str: 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.

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

Пример #1 SplFileObject::fwrite() example


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

Результатом выполнения данного примера будет что-то подобное:

Wrote 5 bytes to file