SplFileObject::fseek

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

SplFileObject::fseekSeek to a position

Açıklama

public SplFileObject::fseek(int $offset, int $whence = SEEK_SET): int

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.

Bağımsız Değişkenler

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.

Dönen Değerler

Returns 0 if the seek was successful, -1 otherwise. Note that seeking past EOF is not considered an error.

Örnekler

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);
?>

Ayrıca Bakınız

  • fseek() - Dosya tanıtıcısında konumu bir yerden başka bir yere taşır

add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top