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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 288721 $ -->
<refentry xml:id="streamwrapper.stream-read" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>streamWrapper::stream_read</refname>
<refpurpose>Read from stream</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<modifier>public</modifier> <type>string</type><methodname>streamWrapper::stream_read</methodname>
<methodparam><type>int</type><parameter>count</parameter></methodparam>
</methodsynopsis>
<para>
This method is called in response to <function>fread</function>
and <function>fgets</function>.
</para>
<note>
<para>
Remember to update the read/write position of the stream (by the number of
bytes that were successfully read).
</para>
</note>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>count</parameter></term>
<listitem>
<para>
How many bytes of data from the current position should be returned.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
If there are less than <parameter>count</parameter>
bytes available, return as many as are available. If no
more data is available, return either &false; or an
empty string.
</para>
</refsect1>
<refsect1 role="errors"><!-- {{{ -->
&reftitle.errors;
&userstream.not.implemented.warning;
<note>
<para>
If the return value is longer then <parameter>count</parameter> an
<constant>E_WARNING</constant> error will be emitted, and excess data will be
lost.
</para>
</note>
</refsect1><!-- }}} -->
<!--
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>streamWrapper::stream_read</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
/* ... */
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
...
]]>
</screen>
</example>
</para>
</refsect1>
-->
<refsect1 role="notes"><!-- {{{ -->
&reftitle.notes;
<note>
<para>
<methodname>streamWrapper::stream_eof</methodname> is called directly after
calling <methodname>streamWrapper::stream_read</methodname> to check if
<acronym>EOF</acronym> has been reached. If not implemented,
<acronym>EOF</acronym> is assumed.
</para>
</note>
</refsect1><!-- }}} -->
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>fread</function></member>
<member><function>fgets</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
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sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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-->
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