gzseek

(PHP 3, PHP 4 , PHP 5)

gzseek -- Seek on a gz-file pointer

Description

int gzseek ( resource zp, int offset)

Sets the file position indicator for the file referenced by zp to offset bytes 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.

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

See also gztell() and gzrewind().


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