GoLang rewind

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GoLang replacement for PHP's rewind [edit | history]



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PHP rewind

PHP original manual for rewind [ show | php.net ]

rewind

(PHP 4, PHP 5, PHP 7)

rewind — Rewind the position of a file pointer

Description

bool rewind ( resource $handle )

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.

Parameters

handle

The file pointer must be valid, and must point to a file successfully opened by fopen().

Return Values

Returns TRUE on success or FALSE on failure.

Examples

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.

See Also

  • fread() - Binary-safe file read
  • fseek() - Seeks on a file pointer
  • ftell() - Returns the current position of the file read/write pointer
  • fwrite() - Binary-safe file write