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that take a filename as a parameter. In addition, URLs can be

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used with the <function>include</function>,

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<function>include_once</function>, <function>require</function> and

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<function>require_once</function> statements (since PHP 5.2.0,

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<option>allow_url_include</option> must be enabled for these).

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<function>require_once</function> statements

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(<option>allow_url_include</option> must be enabled for these).

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See <xref linkend="wrappers"/> for more information about the protocols

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supported by PHP.

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</para>

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<note>

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<para>

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In PHP 4.0.3 and older, in order to use URL wrappers, you were required

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to configure PHP using the configure option

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<option>--enable-url-fopen-wrapper</option>.

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</para>

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</note>

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<para>

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<note>

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<para>

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The Windows versions of PHP earlier than PHP 4.3

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did not support remote file accessing for the following functions:

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<function>include</function>, <function>include_once</function>,

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<function>require</function>, <function>require_once</function>,

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and the imagecreatefromXXX functions in the <xref linkend="ref.image"/>

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extension.

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</para>

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</note>

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</para>

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<para>

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For example, you can use this to open a file on a remote web server,

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parse the output for the data you want, and then use that data in a

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