rewind()¶
rewind() is a native PHP function that sets the file position indicator for a file pointer to the beginning of the file.
It is equivalent to fseek($fp, 0) and is useful when re-reading a file from the start without closing and reopening it. The rewind() function returns true on success, or false on failure. A E_WARNING error is emitted if the file pointer is not valid.
<?php
$fp = fopen('/tmp/test.txt', 'r');
// Read some content
$content = fread($fp, 100);
// Rewind to the beginning to re-read
rewind($fp);
$contentAgain = fread($fp, 100);
fclose($fp);
?>
See also rewind() function.
