mirror of
https://github.com/sigmasternchen/php-doc-en
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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@297028 c90b9560-bf6c-de11-be94-00142212c4b1
129 lines
3.2 KiB
XML
129 lines
3.2 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xml:id="function.posix-access" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>posix_access</refname>
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<refpurpose>
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Determine accessibility of a file
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</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>bool</type><methodname>posix_access</methodname>
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<methodparam><type>string</type><parameter>file</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>mode</parameter><initializer>POSIX_F_OK</initializer></methodparam>
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</methodsynopsis>
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<para>
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<function>posix_access</function> checks the user's permission of a file.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>file</parameter></term>
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<listitem>
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<para>
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The name of the file to be tested.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>mode</parameter></term>
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<listitem>
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<para>
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A mask consisting of one or more of <constant>POSIX_F_OK</constant>,
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<constant>POSIX_R_OK</constant>, <constant>POSIX_W_OK</constant> and
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<constant>POSIX_X_OK</constant>.
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</para>
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<para>
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<constant>POSIX_R_OK</constant>, <constant>POSIX_W_OK</constant> and
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<constant>POSIX_X_OK</constant> request checking whether the file
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exists and has read, write and execute permissions, respectively.
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<constant>POSIX_F_OK</constant> just requests checking for the
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existence of the file.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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&return.success;
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title><function>posix_access</function> example</title>
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<para>
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This example will check if the $file is readable and writable, otherwise
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will print an error message.
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</para>
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<programlisting role="php">
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<![CDATA[
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<?php
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$file = 'some_file';
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if (posix_access($file, POSIX_R_OK | POSIX_W_OK)) {
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echo 'The file is readable and writable!';
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} else {
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$error = posix_get_last_error();
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echo "Error $error: " . posix_strerror($error);
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}
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?>
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]]>
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</programlisting>
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</example>
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</para>
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</refsect1>
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<refsect1 role="notes">
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&reftitle.notes;
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¬e.sm.uidcheck;
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>posix_get_last_error</function></member>
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<member><function>posix_strerror</function></member>
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</simplelist>
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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:"~/.phpdoc/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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