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: If
sizeis 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:
HelloSee Also
- ftruncate() - Truncates a file to a given length
← SplFileObject::ftell
SplFileObject::fwrite →
? 1997–2017 The PHP Documentation GroupLicensed under the Creative Commons Attribution License v3.0 or later.
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