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https://github.com/sigmasternchen/php-doc-en
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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@126172 c90b9560-bf6c-de11-be94-00142212c4b1
55 lines
1.8 KiB
XML
55 lines
1.8 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.4 $ -->
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<refentry id="function.sha1-file">
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<refnamediv>
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<refname>sha1_file</refname>
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<refpurpose>Calculate the sha1 hash of a file</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>string</type><methodname>sha1_file</methodname>
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<methodparam><type>string</type><parameter>filename</parameter></methodparam>
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<methodparam choice='opt'><type>bool</type><parameter>raw_output</parameter></methodparam>
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</methodsynopsis>
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<simpara>
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Calculates the sha1 hash of <parameter>filename</parameter> using the
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<ulink url="&url.rfc;3174">US Secure Hash Algorithm 1</ulink>,
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and returns that hash. The hash is a 40-character hexadecimal number.
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Upon failure, &false; is returned. If the optional
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<parameter>raw_output</parameter> is set to &true;, then the sha1 digest
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is instead returned in raw binary format with a length of 20.
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</simpara>
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<note>
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<simpara>
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The optional <parameter>raw_output</parameter> parameter was added in
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PHP 5.0.0 and defaults to &false;
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</simpara>
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</note>
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<simpara>
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See also <function>sha1</function>, <function>crc32</function>,
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and <function>md5_file</function>
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</simpara>
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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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