1--TEST--
2Test gzcompress() function : basic functionality
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
17/*
18 * add a comment here to say what the test is supposed to do
19 */
20
21include(dirname(__FILE__) . '/data.inc');
22
23echo "*** Testing gzcompress() : basic functionality ***\n";
24
25// Initialise all required variables
26
27$smallstring = "A small string to compress\n";
28
29
30// Calling gzcompress() with all possible arguments
31
32// Compressing a big string
33for($i = -1; $i < 10; $i++) {
34    echo "-- Compression level $i --\n";
35    $output = gzcompress($data, $i);
36    var_dump(md5($output));
37	var_dump(strcmp(gzuncompress($output), $data));
38}
39
40// Compressing a smaller string
41for($i = -1; $i < 10; $i++) {
42    echo "-- Compression level $i --\n";
43    $output = gzcompress($smallstring, $i);
44    var_dump(bin2hex($output));
45	var_dump(strcmp(gzuncompress($output), $smallstring));
46}
47
48// Calling gzcompress() with mandatory arguments
49echo "\n-- Testing with no specified compression level --\n";
50var_dump( bin2hex(gzcompress($smallstring) ));
51
52?>
53===Done===
54--EXPECT--
55*** Testing gzcompress() : basic functionality ***
56-- Compression level -1 --
57string(32) "764809aef15bb34cb73ad49ecb600d99"
58int(0)
59-- Compression level 0 --
60string(32) "d0136b3fb5424142c0eb26dfec8f56fe"
61int(0)
62-- Compression level 1 --
63string(32) "c2e070f4320d1f674965eaab95b53d9c"
64int(0)
65-- Compression level 2 --
66string(32) "400a53d19ca337727f8cd362f5cd3ee0"
67int(0)
68-- Compression level 3 --
69string(32) "a441a2f5169bb303cd45b860a5a9dbf9"
70int(0)
71-- Compression level 4 --
72string(32) "d5b7451e9de2864beccc9de1fc55eb87"
73int(0)
74-- Compression level 5 --
75string(32) "32ba4a01120449ec25508cabfad41f56"
76int(0)
77-- Compression level 6 --
78string(32) "764809aef15bb34cb73ad49ecb600d99"
79int(0)
80-- Compression level 7 --
81string(32) "e083e7e8d05471fed3c2182b9cd0d9eb"
82int(0)
83-- Compression level 8 --
84string(32) "e083e7e8d05471fed3c2182b9cd0d9eb"
85int(0)
86-- Compression level 9 --
87string(32) "e083e7e8d05471fed3c2182b9cd0d9eb"
88int(0)
89-- Compression level -1 --
90string(70) "789c735428ce4dccc951282e29cacc4b5728c95748cecf2d284a2d2ee6020087a509cb"
91int(0)
92-- Compression level 0 --
93string(76) "7801011b00e4ff4120736d616c6c20737472696e6720746f20636f6d70726573730a87a509cb"
94int(0)
95-- Compression level 1 --
96string(70) "7801735428ce4dccc951282e29cacc4b5728c95748cecf2d284a2d2ee6020087a509cb"
97int(0)
98-- Compression level 2 --
99string(70) "785e735428ce4dccc951282e29cacc4b5728c95748cecf2d284a2d2ee6020087a509cb"
100int(0)
101-- Compression level 3 --
102string(70) "785e735428ce4dccc951282e29cacc4b5728c95748cecf2d284a2d2ee6020087a509cb"
103int(0)
104-- Compression level 4 --
105string(70) "785e735428ce4dccc951282e29cacc4b5728c95748cecf2d284a2d2ee6020087a509cb"
106int(0)
107-- Compression level 5 --
108string(70) "785e735428ce4dccc951282e29cacc4b5728c95748cecf2d284a2d2ee6020087a509cb"
109int(0)
110-- Compression level 6 --
111string(70) "789c735428ce4dccc951282e29cacc4b5728c95748cecf2d284a2d2ee6020087a509cb"
112int(0)
113-- Compression level 7 --
114string(70) "78da735428ce4dccc951282e29cacc4b5728c95748cecf2d284a2d2ee6020087a509cb"
115int(0)
116-- Compression level 8 --
117string(70) "78da735428ce4dccc951282e29cacc4b5728c95748cecf2d284a2d2ee6020087a509cb"
118int(0)
119-- Compression level 9 --
120string(70) "78da735428ce4dccc951282e29cacc4b5728c95748cecf2d284a2d2ee6020087a509cb"
121int(0)
122
123-- Testing with no specified compression level --
124string(70) "789c735428ce4dccc951282e29cacc4b5728c95748cecf2d284a2d2ee6020087a509cb"
125===Done===