SplFileObject::rewindSplFileObject::seek
(PHP 5 >= 5.1.0)
SplFileObject::seek — Seek to specified line
Описание
public void SplFileObject::seek
( int $line_pos
)
Seek to specified line in the file.
Параметри
- line_pos
-
The zero-based line number to seek to.
Връщани стойности
Няма връщана стойност.
Грешки/Изключения
Throws a LogicException if the line_pos is negative.
Примери
Example #1 SplFileObject::seek example
This example outputs the third line of the script which is found at position 2.
<?php
$file = new SplFileObject(__FILE__);
$file->seek(2);
echo $file->current();
?>
Примерът по-горе ще изведе нещо подобно на:
$file->seek(2);
Вж. също
- SplFileObject::current - Retrieve current line of file
- SplFileObject::key - Get line number
- SplFileObject::next - Read next line
- SplFileObject::rewind - Rewind the file to the first line
- SplFileObject::valid - Not at EOF
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SplFileObject::seek
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