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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@166223 c90b9560-bf6c-de11-be94-00142212c4b1
122 lines
3.7 KiB
XML
122 lines
3.7 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/info.xml, last change in rev 1.2 -->
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<refentry id="function.get-magic-quotes-gpc">
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<refnamediv>
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<refname>get_magic_quotes_gpc</refname>
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<refpurpose>
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Gets the current configuration setting of magic quotes gpc
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</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>int</type><methodname>get_magic_quotes_gpc</methodname>
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<void/>
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</methodsynopsis>
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<simpara>
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Returns the current configuration setting of <link
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linkend="ini.magic-quotes-gpc">magic_quotes_gpc</link> (0 for
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off, 1 for on).
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</simpara>
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<note>
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<para>
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If the directive <link linkend="ini.magic-quotes-sybase">
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magic_quotes_sybase</link> is ON it will completely
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override <parameter>magic_quotes_gpc</parameter>. So even
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when <function>get_magic_quotes</function> returns
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&true; neither double quotes, backslashes or NUL's will
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be escaped. Only single quotes will be escaped. In this
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case they'll look like: <emphasis>''</emphasis>
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</para>
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</note>
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<simpara>
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Keep in mind that the setting <link linkend="ini.magic-quotes-gpc">
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magic_quotes_gpc</link> will not work at runtime.
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</simpara>
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<para>
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<example>
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<title><function>get_magic_quotes_gpc</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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echo get_magic_quotes_gpc(); // 1
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echo $_POST['lastname']; // O\'reilly
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echo addslashes($_POST['lastname']); // O\\\'reilly
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if (!get_magic_quotes_gpc()) {
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$lastname = addslashes($_POST['lastname']);
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} else {
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$lastname = $_POST['lastname'];
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}
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echo $lastname; // O\'reilly
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$sql = "INSERT INTO lastnames (lastname) VALUES ('$lastname')";
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?>
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]]>
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</programlisting>
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</example>
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</para>
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<para>
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In the interests of writing portable code (code that works
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in any environment), or, if you do not have access to change
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php.ini, you may wish to disable the effects of magic quotes
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on a per-script basis. This can be done in two ways, with a
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directive in a .htaccess file (php_value magic_quotes_gpc 0),
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or by adding the below code to the top of your scripts.
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<example>
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<title>Disabling magic quotes at runtime</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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if (get_magic_quotes_gpc()) {
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function stripslashes_deep($value)
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{
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$value = is_array($value) ?
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array_map('stripslashes_deep', $value) :
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stripslashes($value);
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return $value;
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}
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$_POST = array_map('stripslashes_deep', $_POST);
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$_GET = array_map('stripslashes_deep', $_GET);
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$_COOKIE = array_map('stripslashes_deep', $_COOKIE);
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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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Magic-quotes was added to reduce code written by beginners from being dangerous.
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If you disable magic quotes, you must be very careful to protect yourself from
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SQL injection attacks.
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</para>
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<simpara>
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See also <function>addslashes</function>,
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<function>stripslashes</function>,
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<function>get_magic_quotes_runtime</function>, and
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<function>ini_get</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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