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, [int encoding]]) 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 21echo "\n-- Testing multiple compression --\n"; 22$output = gzcompress($data); 23var_dump( md5($output)); 24var_dump(md5(gzcompress($output))); 25 26?> 27===Done=== 28--EXPECTF-- 29*** Testing gzcompress() : variation *** 30 31-- Testing multiple compression -- 32string(32) "764809aef15bb34cb73ad49ecb600d99" 33string(32) "eba942bc2061f23ea8688cc5101872a4" 34===Done=== 35