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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 326350 $ -->
<refentry xml:id="function.eio-write" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>eio_write</refname>
<refpurpose>Write to file</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>resource</type><methodname>eio_write</methodname>
<methodparam><type>mixed</type><parameter>fd</parameter></methodparam>
<methodparam><type>string</type><parameter>str</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>length</parameter><initializer>0</initializer></methodparam>
<methodparam choice="opt"><type>int</type><parameter>offset</parameter><initializer>0</initializer></methodparam>
<methodparam
choice="opt"><type>int</type><parameter>pri</parameter><initializer>EIO_PRI_DEFAULT</initializer></methodparam>
<methodparam
choice="opt"><type>callable</type><parameter>callback</parameter><initializer>NULL</initializer></methodparam>
<methodparam
choice="opt"><type>mixed</type><parameter>data</parameter><initializer>NULL</initializer></methodparam>
</methodsynopsis>
<para>
<function>eio_write</function> writes up to <parameter>length</parameter>
bytes from <parameter>str</parameter> at <parameter>offset</parameter>
offset from the beginning of the file.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<variablelist>
<varlistentry>
<term><parameter>fd</parameter></term>
<listitem>
<para>
Stream, Socket resource, or numeric file descriptor, e.g. returned by <function>eio_open</function>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>str</parameter></term>
<listitem>
<para>
Source string
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>length</parameter></term>
<listitem>
<para>
Maximum number of bytes to write.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>offset</parameter></term>
<listitem>
<para>
Offset from the beginning of file.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>pri</parameter></term>
<listitem>
&eio.request.pri.values;
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>callback</parameter></term>
<listitem>
&eio.callback.proto;
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>data</parameter></term>
<listitem>
<para>
Arbitrary variable passed to <parameter>callback</parameter>.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
<function>eio_write</function> returns request resource on success or &false; on error.
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<simplelist>
<member>eio_open</member>
</simplelist>
</refsect1>
</refentry>
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