PHP ftruncate() Function
❮ PHP Filesystem ReferenceExample
Truncates an open file to the specified length (100 bytes):
<?php
// Check filesize
echo filesize("test.txt");
echo "<br>";
$file = fopen("test.txt", "a+");
ftruncate($file,100);
fclose($file);
// Clear cache and check filesize again
clearstatcache();
echo filesize("test.txt");
?>
The output of the code above will be:
792
100
Definition and Usage
The ftruncate() function truncates an open file to the specified length.
Syntax
ftruncate(file, size)
Parameter Values
| Parameter | Description |
|---|---|
| file | Required. Specifies the open file to truncate |
| size | Required. Specifies the new file size |
Technical Details
| Return Value: | TRUE on success, or FALSE on failure. |
|---|---|
| PHP Version: | 4.0+ |
❮ PHP Filesystem Reference
