(PHP 5 >= 5.1.0)
SplFileObject::ftruncate — Truncates the file to a given length
$size
)
Truncates the file to size bytes.
sizeThe size to truncate to.
Nota:
If
sizeis larger than the file it is extended with null bytes.If
sizeis smaller than the file, the extra data will be lost.
Restituisce TRUE in caso di successo, FALSE in caso di fallimento.
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();
?>
Il precedente esempio visualizzerà qualcosa simile a:
Hello