(PHP 4, PHP 5, PHP 7)
ftruncate — Truncates a file to a given length
$handle
, int $size
)
Takes the filepointer, handle
, and truncates the file to
length, size
.
handle
The file pointer.
Note:
The
handle
must be open for writing.
size
The size to truncate to.
Note:
If
size
is larger than the file then the file is extended with null bytes.If
size
is smaller than the file then the file is truncated to that size.
성공 시 TRUE
를, 실패 시 FALSE
를 반환합니다.
Example #1 File truncation example
<?php
$filename = 'lorem_ipsum.txt';
$handle = fopen($filename, 'r+');
ftruncate($handle, rand(1, filesize($filename)));
rewind($handle);
echo fread($handle, filesize($filename));
fclose($handle);
?>
Note:
The file pointer is not changed.