SplFileObject::ftruncate
SplFileObject::ftruncate
(PHP 5 >= 5.1.0, PHP 7)
SplFileObject::ftruncate — Truncates the file to a given length
Description
public bool SplFileObject::ftruncate ( int $size )
Truncates the file to size bytes.
Parameters
size
The size to truncate to.
Note: Ifsizeis larger than the file it is extended with null bytes. Ifsizeis smaller than the file, the extra data will be lost.
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example #1 SplFileObject::ftruncate() example
<?php
// Create file containing "Hello World!"
$file = new SplFileObject("/tmp/ftruncate", "w+"
$file->fwrite("Hello World!"
// Truncate to 5 bytes
$file->ftruncate(5
// Rewind and read data
$file->rewind(
echo $file->fgets(
?>
The above example will output something similar to:
Hello
See Also
- ftruncate() - Truncates a file to a given length
← SplFileObject::ftell
SplFileObject::fwrite →
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/splfileobject.ftruncate.php
