1--TEST-- 2Test function gzseek() by seeking forward in write mode 3--EXTENSIONS-- 4zlib 5--FILE-- 6<?php 7$f = "gzseek_variation1.gz"; 8$h = gzopen($f, 'w'); 9$str1 = "This is the first line."; 10$str2 = "This is the second line."; 11gzwrite($h, $str1); 12 13//seek forwards 20 bytes. 14gzseek($h, strlen($str1) + 20); 15gzwrite($h, $str2); 16gzclose($h); 17$h = gzopen($f, 'r'); 18echo gzread($h, strlen($str1))."\n"; 19var_dump(bin2hex(gzread($h, 20))); 20echo gzread($h, strlen($str2))."\n"; 21gzclose($h); 22unlink($f); 23?> 24--EXPECT-- 25This is the first line. 26string(40) "0000000000000000000000000000000000000000" 27This is the second line. 28