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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.stream-context-get-default" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>stream_context_get_default</refname>
<refpurpose>Retrieve the default stream context</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>resource</type><methodname>stream_context_get_default</methodname>
<methodparam choice="opt"><type class="union"><type>array</type><type>null</type></type><parameter>options</parameter><initializer>&null;</initializer></methodparam>
</methodsynopsis>
<simpara>
Returns the default stream context which is used whenever file operations
(<function>fopen</function>, <function>file_get_contents</function>, etc...)
are called without a context parameter. Options for the default context
can optionally be specified with this function using the same syntax as
<function>stream_context_create</function>.
</simpara>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>options</parameter></term>
<listitem>
<simpara>
<parameter>options</parameter> must be an associative
array of associative arrays in the format
<literal>$arr['wrapper']['option'] = $value</literal>, or &null;.
</simpara>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
A stream context <type>resource</type>.
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>8.0.0</entry>
<entry>
<parameter>options</parameter> is now nullable.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example xml:id="stream-context-get-default.example.basic">
<title>Using <function>stream_context_get_default</function></title>
<programlisting role="php">
<![CDATA[
<?php
$default_opts = array(
'http'=>array(
'method'=>"GET",
'header'=>"Accept-language: en\r\n" .
"Cookie: foo=bar",
'proxy'=>"tcp://10.54.1.39:8000"
)
);
$alternate_opts = array(
'http'=>array(
'method'=>"POST",
'header'=>"Content-type: application/x-www-form-urlencoded\r\n" .
"Content-length: " . strlen("baz=bomb"),
'content'=>"baz=bomb"
)
);
$default = stream_context_get_default($default_opts);
$alternate = stream_context_create($alternate_opts);
/* Sends a regular GET request to proxy server at 10.54.1.39
* For www.example.com using context options specified in $default_opts
*/
readfile('http://www.example.com');
/* Sends a POST request directly to www.example.com
* Using context options specified in $alternate_opts
*/
readfile('http://www.example.com', false, $alternate);
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso"><!-- {{{ -->
&reftitle.seealso;
<para>
<simplelist>
<member><function>stream_context_create</function></member>
<member><function>stream_context_set_default</function></member>
<member>Listing of supported wrappers with context options (<xref linkend="wrappers"/>).</member>
</simplelist>
</para>
</refsect1><!-- }}} -->
</refentry>
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