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-rw-r--r--php/int.php108
1 files changed, 0 insertions, 108 deletions
diff --git a/php/int.php b/php/int.php
deleted file mode 100644
index 478af73..0000000
--- a/php/int.php
+++ /dev/null
@@ -1,108 +0,0 @@
1<?php
2
3/*
4function writeInta( $iIn )
5{
6 $ret = "";
7 if( $iIn < 0 )
8 {
9 $iIn = -$iIn;
10 $b = ($iIn&0x3f);
11 if( $iIn > $b )
12 $b |= 0x80 | 0x40;
13 else
14 $b |= 0x40;
15 }
16 else
17 {
18 $b = ($iIn&0x3f);
19 if( $iIn > $b )
20 $b |= 0x80;
21 }
22
23 $ret .= chr( $b );
24 $iIn = $iIn >> 6;
25
26 while( $iIn > 0 )
27 {
28 $b = ($iIn&0x7f);
29 if( $iIn > $b )
30 $b |= 0x80;
31 $ret .= chr( $b );
32 $iIn = $iIn >> 7;
33 }
34
35 return $ret;
36} */
37
38function writeInt( $iIn )
39{
40 $ret = "";
41 if( gmp_cmp( $iIn, 0 ) < 0 )
42 {
43 $iIn = gmp_mul( $iIn, -1 );
44 $b = gmp_intval( gmp_and( $iIn, 0x3f ) );
45 if( gmp_cmp( $iIn, $b ) > 0 )
46 $b |= 0x80 | 0x40;
47 else
48 $b |= 0x40;
49 }
50 else
51 {
52 $b = gmp_intval( gmp_and( $iIn, 0x3f ) );
53 if( gmp_cmp( $iIn, $b ) > 0 )
54 $b |= 0x80;
55 }
56
57 $ret .= chr( $b );
58 $iIn = gmp_div( $iIn, 64 );
59
60 while( gmp_cmp( $iIn, 0 ) > 0 )
61 {
62 $b = gmp_intval( gmp_and( $iIn, 0x7f ) );
63 if( gmp_cmp( $iIn, $b ) > 0 )
64 $b |= 0x80;
65 $ret .= chr( $b );
66 $iIn = gmp_div( $iIn, 128 );
67 }
68
69 return $ret;
70}
71
72function readInt( $sIn, &$pos )
73{
74 $neg = false;
75
76 $b = ord($sIn[$pos++]);
77 if( ($b&0x40) == 0x40 )
78 $neg = true;
79 $iOut = gmp_init( $b&0x3f );
80 $mult = gmp_init( 64 );
81 while( ($b&0x80) )
82 {
83 $b = ord($sIn[$pos++]);
84 $iOut = gmp_or( $iOut, gmp_mul( $b&0x7f, $mult ) );
85 $mult = gmp_mul( $mult, 128 );
86 }
87 if( $neg == true )
88 $iOut = gmp_mul( $iOut, -1 );
89
90 return $iOut;
91}
92
93function teststr( $str )
94{
95 $pos = 0;
96 $enc = writeInt( $str );
97 $out = gmp_strval( readInt( $enc, $pos ) );
98 print( $str . " => " . $out );
99 if( $out == $str )
100 print(", correct.\n");
101 else
102 print(", incorrect.\n");
103}
104//print( bin2hex( writeInt("3898993999921") ) . "\n" );
105teststr("-7");
106
107
108?>