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
146
147
148
149
150
151
152
153
154
|
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.10 $ -->
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.socket-read">
<refnamediv>
<refname>socket_read</refname>
<refpurpose>Reads a maximum of length bytes from a socket</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>string</type><methodname>socket_read</methodname>
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
<methodparam><type>int</type><parameter>length</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>type</parameter></methodparam>
</methodsynopsis>
<para>
The function <function>socket_read</function> reads from the socket
resource <parameter>socket</parameter> created by the
<function>socket_create</function> or
<function>socket_accept</function> functions.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>socket</parameter></term>
<listitem>
<para>
A valid socket resource created with <function>socket_create</function>
or <function>socket_accept</function>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>length</parameter></term>
<listitem>
<para>
The maximum number of bytes read is specified by the
<parameter>length</parameter> parameter. Otherwise you can use \r, \n,
or \0 to end reading (depending on the <parameter>type</parameter>
parameter, see below).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>type</parameter></term>
<listitem>
<para>
Optional <parameter>type</parameter> parameter is a named constant:
<itemizedlist>
<listitem>
<simpara>
<constant>PHP_BINARY_READ</constant> (Default) - use the system
<literal>recv()</literal> function. Safe for reading binary data.
</simpara>
</listitem>
<listitem>
<simpara>
<constant>PHP_NORMAL_READ</constant> - reading stops at \n or \r.
</simpara>
</listitem>
</itemizedlist>
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
<function>socket_read</function> returns the data as a string on success,
or &false; on error (including if the remote host has closed the
connection). The error code can be retrieved with
<function>socket_last_error</function>. This code may be passed to
<function>socket_strerror</function> to get a textual representation of
the error.
</para>
<note>
<para>
<function>socket_read</function> returns a zero length string ("")
when there is no more data to read.
</para>
</note>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>4.1.0</entry>
<entry>
The default value for <parameter>type</parameter> was changed from
<constant>PHP_NORMAL_READ</constant> to
<constant>PHP_BINARY_READ</constant>
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>socket_accept</function></member>
<member><function>socket_bind</function></member>
<member><function>socket_connect</function></member>
<member><function>socket_listen</function></member>
<member><function>socket_last_error</function></member>
<member><function>socket_strerror</function></member>
<member><function>socket_write</function></member>
</simplelist>
</para>
</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:"../../../../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
-->
|
