(PHP 4, PHP 5, PHP 7)
rewind — Rewind the position of a file pointer
rewind ( resource $handle ) : bool
Sets the file position indicator for handle
to the beginning of the file stream.
Note:
If you have opened the file in append ("a" or "a+") mode, any data you write to the file will always be appended, regardless of the file pointer position.
handle
The file pointer must be valid, and must point to a file successfully opened by fopen().
Returns true
on success or false
on failure.
Example #1 rewind() overwriting example
<?php $handle = fopen('output.txt', 'r+'); fwrite($handle, 'Really long sentence.'); rewind($handle); fwrite($handle, 'Foo'); rewind($handle); echo fread($handle, filesize('output.txt')); fclose($handle); ?>
The above example will output something similar to:
Foolly long sentence.
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https://www.php.net/manual/en/function.rewind.php