-
Notifications
You must be signed in to change notification settings - Fork 105
/
Copy pathrandom-int.xml
145 lines (136 loc) · 3.75 KB
/
random-int.xml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: 0ec8e36e0f649354b20c714080a903d32df4dbfb Maintainer: mowangjuanzi Status: ready -->
<!-- CREDITS: Luffy -->
<refentry xml:id="function.random-int" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>random_int</refname>
<refpurpose>获取生成加密安全、均匀分布的整数</refpurpose>
</refnamediv>
<refsect1 role="description"><!-- {{{ -->
&reftitle.description;
<methodsynopsis>
<type>int</type><methodname>random_int</methodname>
<methodparam><type>int</type><parameter>min</parameter></methodparam>
<methodparam><type>int</type><parameter>max</parameter></methodparam>
</methodsynopsis>
<para>
生成在指定最小值和最大值之间均匀分布的整数。
</para>
<para>
该函数生成的随机性适用于所有应用,包括生成长期秘密,如加密密钥。
</para>
&csprng.sources;
&csprng.function.backport;
</refsect1><!-- }}} -->
<refsect1 role="parameters"><!-- {{{ -->
&reftitle.parameters;
<variablelist>
<varlistentry>
<term><parameter>min</parameter></term>
<listitem>
<para>
要返回的最小值。
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>max</parameter></term>
<listitem>
<para>
要返回的最大值。
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1><!-- }}} -->
<refsect1 role="returnvalues"><!-- {{{ -->
&reftitle.returnvalues;
<para>
从闭合区间 [<parameter>min</parameter>, <parameter>max</parameter>]
返回加密安全、均匀分布的整数。<parameter>min</parameter> 和 <parameter>max</parameter>
都有可能返回。
</para>
</refsect1><!-- }}} -->
<refsect1 role="errors"><!-- {{{ -->
&reftitle.errors;
<itemizedlist>
&csprng.errors;
<listitem>
<simpara>
如果 <parameter>max</parameter> 小于 <parameter>min</parameter>,将会抛出 <classname>ValueError</classname>。
</simpara>
</listitem>
</itemizedlist>
</refsect1><!-- }}} -->
<refsect1 role="changelog">
&reftitle.changelog;
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>8.2.0</entry>
<entry>
<acronym>CSPRNG</acronym> 失败时,此函数现在将抛出 <classname>Random\RandomException</classname>。之前抛出普通的
<classname>Exception</classname>。
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect1>
<refsect1 role="examples"><!-- {{{ -->
&reftitle.examples;
<example xml:id="random-int.example.basic"><!-- {{{ -->
<title><function>random_int</function> 示例</title>
<programlisting role="php">
<![CDATA[
<?php
var_dump(random_int(100, 999));
var_dump(random_int(-1000, 0));
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
int(248)
int(-898)
]]>
</screen>
</example><!-- }}} -->
</refsect1><!-- }}} -->
<refsect1 role="seealso"><!-- {{{ -->
&reftitle.seealso;
<simplelist>
<member><methodname>Random\Randomizer::getInt</methodname></member>
<member><function>random_bytes</function></member>
</simplelist>
</refsect1><!-- }}} -->
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->