Truncates a file to a given length

bool ftruncate ( resource $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 it is extended with null bytes.
If size is smaller than the file the extra data will be lost.

Returns TRUE on success or FALSE on failure.

Version	Description
PHP 4.3.3	Prior to this release ftruncate() returned an integer value of 1 on success, instead of boolean `TRUE`.

Note: The file pointer is not changed.

ftruncate