1--TEST-- 2Test gzcompress() function : variation 3--SKIPIF-- 4<?php 5if (!extension_loaded("zlib")) { 6 print "skip - ZLIB extension not loaded"; 7} 8?> 9--FILE-- 10<?php 11/* Prototype : string gzcompress(string data [, int level]) 12 * Description: Gzip-compress a string 13 * Source code: ext/zlib/zlib.c 14 * Alias to functions: 15 */ 16 17include(dirname(__FILE__) . '/data.inc'); 18 19echo "*** Testing gzcompress() : variation ***\n"; 20 21 22 23echo "\n-- Testing multiple compression --\n"; 24$output = gzcompress($data); 25var_dump( md5($output)); 26var_dump(md5(gzcompress($output))); 27 28?> 29===Done=== 30--EXPECTF-- 31*** Testing gzcompress() : variation *** 32 33-- Testing multiple compression -- 34string(32) "764809aef15bb34cb73ad49ecb600d99" 35string(32) "eba942bc2061f23ea8688cc5101872a4" 36===Done===