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https://github.com/sigmasternchen/php-doc-en
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f72f51e389
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@158848 c90b9560-bf6c-de11-be94-00142212c4b1
117 lines
3.6 KiB
XML
117 lines
3.6 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.12 $ -->
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<!-- splitted from ./en/functions/filesystem.xml, last change in rev 1.2 -->
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<refentry id="function.chmod">
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<refnamediv>
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<refname>chmod</refname>
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<refpurpose>Changes file mode</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>bool</type><methodname>chmod</methodname>
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<methodparam><type>string</type><parameter>filename</parameter></methodparam>
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<methodparam><type>int</type><parameter>mode</parameter></methodparam>
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</methodsynopsis>
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<para>
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Attempts to change the mode of the file specified by
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<parameter>filename</parameter> to that given in
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<parameter>mode</parameter>.
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</para>
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<para>
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Note that <parameter>mode</parameter> is not automatically
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assumed to be an octal value, so strings (such as "g+w") will
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not work properly. To ensure the expected operation,
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you need to prefix <parameter>mode</parameter> with a zero (0):
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</para>
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<para>
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<informalexample>
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<programlisting role="php">
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<![CDATA[
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<?php
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chmod("/somedir/somefile", 755); // decimal; probably incorrect
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chmod("/somedir/somefile", "u+rwx,go+rx"); // string; incorrect
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chmod("/somedir/somefile", 0755); // octal; correct value of mode
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?>
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]]>
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</programlisting>
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</informalexample>
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</para>
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<para>
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The <parameter>mode</parameter> parameter consists of three octal
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number components specifying access restrictions for the owner,
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the user group in which the owner is in, and to everybody else in
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this order. One component can be computed by adding up the needed
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permissions for that target user base. Number 1 means that you
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grant execute rights, number 2 means that you make the file
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writeable, number 4 means that you make the file readable. Add
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up these numbers to specify needed rights. You can also read more
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about modes on Unix systems with 'man 1 chmod' and 'man 2 chmod'.
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</para>
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<para>
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<informalexample>
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<programlisting role="php">
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<![CDATA[
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<?php
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// Read and write for owner, nothing for everybody else
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chmod("/somedir/somefile", 0600);
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// Read and write for owner, read for everybody else
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chmod("/somedir/somefile", 0644);
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// Everything for owner, read and execute for others
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chmod("/somedir/somefile", 0755);
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// Everything for owner, read and execute for owner's group
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chmod("/somedir/somefile", 0750);
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?>
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]]>
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</programlisting>
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</informalexample>
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</para>
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<para>
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&return.success;
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</para>
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<note>
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<para>
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The current user is the user under which PHP runs. It is
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probably not the same user you use for normal shell or FTP
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access.
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</para>
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</note>
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¬e.no-remote;
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<note>
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<simpara>
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When &safemode; is enabled, PHP
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checks whether the files or directories you are about to operate on have
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the same UID (owner) as the script that is being executed. In addition,
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you cannot set the SUID, SGID and sticky bits
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</simpara>
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</note>
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<para>
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See also <function>chown</function> and
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<function>chgrp</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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