mirror of
https://github.com/sigmasternchen/php-doc-en
synced 2025-03-27 06:18:56 +00:00
d92412f24d
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@174867 c90b9560-bf6c-de11-be94-00142212c4b1
125 lines
3.5 KiB
XML
125 lines
3.5 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
|
|
<!-- $Revision: 1.13 $ -->
|
|
<!-- splitted from ./en/functions/info.xml, last change in rev 1.64 -->
|
|
<refentry id="function.ini-get">
|
|
<refnamediv>
|
|
<refname>ini_get</refname>
|
|
<refpurpose>Gets the value of a configuration option</refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>string</type><methodname>ini_get</methodname>
|
|
<methodparam><type>string</type><parameter>varname</parameter></methodparam>
|
|
</methodsynopsis>
|
|
<para>
|
|
Returns the value of the configuration option on success. Failure, such
|
|
as querying for a non-existent value, will return an empty string.
|
|
</para>
|
|
<note>
|
|
<title>When querying boolean values</title>
|
|
<para>
|
|
A boolean ini value of <literal>off</literal> will be returned as an
|
|
empty string or "0" while a boolean ini value of <literal>on</literal> will
|
|
be returned as "1".
|
|
</para>
|
|
</note>
|
|
<note>
|
|
<title>When querying memory size values</title>
|
|
<para>
|
|
Many ini memory size values, such as
|
|
<link linkend="ini.upload-max-filesize">upload_max_filesize</link>, are
|
|
stored in the &php.ini; file in shorthand notation.
|
|
<function>ini_get</function> will return the exact string stored in the
|
|
&php.ini; file and <emphasis>NOT</emphasis> its <type>integer</type>
|
|
equivalent. Attempting normal arithmetic functions on these values
|
|
will not have otherwise expected results. The example below shows one
|
|
way to convert shorthand notation into bytes, much like how the PHP
|
|
source does it.
|
|
</para>
|
|
</note>
|
|
<para>
|
|
<example>
|
|
<title>A few <function>ini_get</function> examples</title>
|
|
<programlisting role="php">
|
|
<![CDATA[
|
|
<?php
|
|
/*
|
|
Our php.ini contains the following settings:
|
|
|
|
display_errors = On
|
|
register_globals = Off
|
|
post_max_size = 8M
|
|
*/
|
|
|
|
echo 'display_errors = ' . ini_get('display_errors') . "\n";
|
|
echo 'register_globals = ' . ini_get('register_globals') . "\n";
|
|
echo 'post_max_size = ' . ini_get('post_max_size') . "\n";
|
|
echo 'post_max_size+1 = ' . (ini_get('post_max_size')+1) . "\n";
|
|
echo 'post_max_size in bytes = ' . return_bytes(ini_get('post_max_size'));
|
|
|
|
function return_bytes($val) {
|
|
$val = trim($val);
|
|
$last = strtolower($val{strlen($val)-1});
|
|
switch($last) {
|
|
// The 'G' modifier is available since PHP 5.1.0
|
|
case 'g':
|
|
$val *= 1024;
|
|
case 'm':
|
|
$val *= 1024;
|
|
case 'k':
|
|
$val *= 1024;
|
|
}
|
|
|
|
return $val;
|
|
}
|
|
|
|
?>
|
|
]]>
|
|
</programlisting>
|
|
<para>
|
|
This script will produce:
|
|
</para>
|
|
<screen>
|
|
<![CDATA[
|
|
|
|
display_errors = 1
|
|
register_globals = 0
|
|
post_max_size = 8M
|
|
post_max_size+1 = 9
|
|
post_max_size in bytes = 8388608
|
|
|
|
]]>
|
|
</screen>
|
|
</example>
|
|
</para>
|
|
<para>
|
|
See also
|
|
<function>get_cfg_var</function>,
|
|
<function>ini_get_all</function>,
|
|
<function>ini_restore</function>, and
|
|
<function>ini_set</function>.
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<!-- Keep this comment at the end of the file
|
|
Local variables:
|
|
mode: sgml
|
|
sgml-omittag:t
|
|
sgml-shorttag:t
|
|
sgml-minimize-attributes:nil
|
|
sgml-always-quote-attributes:t
|
|
sgml-indent-step:1
|
|
sgml-indent-data:t
|
|
indent-tabs-mode:nil
|
|
sgml-parent-document:nil
|
|
sgml-default-dtd-file:"../../../../manual.ced"
|
|
sgml-exposed-tags:nil
|
|
sgml-local-catalogs:nil
|
|
sgml-local-ecat-files:nil
|
|
End:
|
|
vim600: syn=xml fen fdm=syntax fdl=2 si
|
|
vim: et tw=78 syn=sgml
|
|
vi: ts=1 sw=1
|
|
-->
|