gzseek

Description

Sets the file position indicator for the given file pointer to the given offset byte into the file stream. Equivalent to calling (in C) gzseek(zp, offset, SEEK_SET).

If the file is opened for reading, this function is emulated but can be extremely slow. If the file is opened for writing, only forward seeks are supported; gzseek() then compresses a sequence of zeroes up to the new starting position.

Parameters

Return Values

Upon success, returns 0; otherwise, returns -1. Note that seeking past EOF is not considered an error.

Examples

Example 1. gzseek() example <?php $gz = gzopen('somefile.gz', 'r'); gzseek($gz,2); echo gzgetc($gz); gzclose($gz); ?>

See Also