rewind

  • The rewind function in PHP resets the file pointer back to the start of the file. This example does a dummy read on the file to move the pointer and then rewinds it.

    PHP

    $f = fopen('/path/to/foobar.txt', 'r');
fread($f);
print ftell($f);
//=> 42
 
rewind($f);
print ftell($f);
//=> 0
 
fclose($f);

    Ruby’s File#rewind method works exactly the same way.

    Ruby

    File.open('/path/to/foobar.txt', 'r') do |f|
  f.read
  puts f.tell
  #=> 42
 
  f.rewind
  puts f.tell
  #=> 0
end

    see also

← reset rmdir →

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