GoLang streamWrapper::stream_seek

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PHP streamWrapper::stream_seek

PHP original manual for streamWrapper::stream_seek [ show | php.net ]


(PHP 4 >= 4.3.2, PHP 5, PHP 7)

streamWrapper::stream_seekSeeks to specific location in a stream


public bool streamWrapper::stream_seek ( int $offset , int $whence = SEEK_SET )

This method is called in response to fseek().

The read/write position of the stream should be updated according to the offset and whence.



The stream offset to seek to.


Possible values:

  • SEEK_SET - Set position equal to offset bytes.
  • SEEK_CUR - Set position to current location plus offset.
  • SEEK_END - Set position to end-of-file plus offset.

Return Values

Return TRUE if the position was updated, FALSE otherwise.



If not implemented, FALSE is assumed as the return value.


Upon success, streamWrapper::stream_tell() is called directly after calling streamWrapper::stream_seek(). If streamWrapper::stream_tell() fails, the return value to the caller function will be set to FALSE


Not all seeks operations on the stream will result in this function being called. PHP streams have read buffering enabled by default (see also stream_set_read_buffer()) and seeking may be done by merely moving the buffer pointer.

See Also

  • fseek() - Seeks on a file pointer