mirror of
https://github.com/sigmasternchen/php-doc-en
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a142babd0f
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@228836 c90b9560-bf6c-de11-be94-00142212c4b1
95 lines
3 KiB
XML
95 lines
3 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.17 $ -->
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<!-- splitted from ./en/functions/filesystem.xml, last change in rev 1.2 -->
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<refentry id="function.fscanf">
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<refnamediv>
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<refname>fscanf</refname>
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<refpurpose>Parses input from a file according to a format</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>mixed</type><methodname>fscanf</methodname>
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<methodparam><type>resource</type><parameter>handle</parameter></methodparam>
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<methodparam><type>string</type><parameter>format</parameter></methodparam>
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<methodparam choice="opt"><type>mixed</type><parameter role="reference">...</parameter></methodparam>
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</methodsynopsis>
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<para>
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The function <function>fscanf</function> is similar to
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<function>sscanf</function>, but it takes its input from a file
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associated with <parameter>handle</parameter> and interprets the
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input according to the specified <parameter>format</parameter>, which is
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described in the documentation for <function>sprintf</function>. If only
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two parameters were passed to this function, the values parsed will be
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returned as an array. Otherwise, if optional parameters are passed, the
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function will return the number of assigned values. The optional
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parameters must be passed by reference.
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</para>
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<para>
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Any whitespace in the format string matches any whitespace in the input
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stream. This means that even a tab <literal>\t</literal> in the format
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string can match a single space character in the input stream.
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</para>
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<para>
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<example>
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<title><function>fscanf</function> Example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$handle = fopen("users.txt", "r");
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while ($userinfo = fscanf($handle, "%s\t%s\t%s\n")) {
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list ($name, $profession, $countrycode) = $userinfo;
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//... do something with the values
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}
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fclose($handle);
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?>
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]]>
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</programlisting>
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</example>
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<example>
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<title>Contents of users.txt</title>
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<programlisting role="txt">
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<![CDATA[
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javier argonaut pe
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hiroshi sculptor jp
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robert slacker us
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luigi florist it
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]]>
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</programlisting>
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</example>
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</para>
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<note>
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<simpara>
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Prior to PHP 4.3.0, the maximum number of characters read from
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the file was 512 (or up to the first \n, whichever came first).
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As of PHP 4.3.0 arbitrarily long lines will be read and scanned.
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</simpara>
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</note>
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<para>
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See also <function>fread</function>, <function>fgets</function>,
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<function>fgetss</function>, <function>sscanf</function>,
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<function>printf</function>, and <function>sprintf</function>.
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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