(PHP 5 >= 5.1.0, PHP 7)
Truncates the file to a given length
public bool SplFileObject::ftruncate ( int $size )
Truncates the file to size
bytes.
Parameters:
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:
Returns TRUE
on success or FALSE
on failure.
Examples:
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:
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