(PHP 5 >= 5.1.0, PHP 7, PHP 8)
SplFileObject::fseek — Seek to a position
Seek to a position in the file measured in bytes
from the beginning of the file, obtained by adding
offset
to the position specified by
whence
.
offset
The offset. A negative value can be used to move backwards through the file which
is useful when SEEK_END is used as the whence
value.
whence
whence
values are:
SEEK_SET
- Set position equal to offset
bytes.SEEK_CUR
- Set position to current location plus offset
.SEEK_END
- Set position to end-of-file plus offset
.
If whence
is not specified, it is assumed to be SEEK_SET
.
Returns 0 if the seek was successful, -1 otherwise. Note that seeking past EOF is not considered an error.
Örnek 1 SplFileObject::fseek() example
<?php
$file = new SplFileObject("somefile.txt");
// Read first line
$data = $file->fgets();
// Move back to the beginning of the file
// Same as $file->rewind();
$file->fseek(0);
?>