1--TEST-- 2Test function gzread() by calling it while file open for writing 3--EXTENSIONS-- 4zlib 5--FILE-- 6<?php 7 8$filename = "gzread_variation1.txt.gz"; 9$h = gzopen($filename, 'w'); 10$str = "Here is the string to be written. "; 11var_dump(gzread($h, 100)); 12gzwrite( $h, $str); 13var_dump(gzread($h, 100)); 14gzrewind($h); 15var_dump(gzread($h, 100)); 16gzclose($h); 17 18$h = gzopen($filename, 'r'); 19gzpassthru($h); 20gzclose($h); 21echo "\n"; 22unlink($filename); 23?> 24--EXPECT-- 25bool(false) 26bool(false) 27bool(false) 28Here is the string to be written. 29