mirror of
https://github.com/sigmasternchen/php-doc-en
synced 2025-03-23 04:18:56 +00:00
37771eeb9e
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@165096 c90b9560-bf6c-de11-be94-00142212c4b1
65 lines
2.3 KiB
XML
65 lines
2.3 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
|
|
<!-- $Revision: 1.5 $ -->
|
|
<!-- splitted from ./en/functions/exec.xml, last change in rev 1.2 -->
|
|
<refentry id="function.passthru">
|
|
<refnamediv>
|
|
<refname>passthru</refname>
|
|
<refpurpose>
|
|
Execute an external program and display raw output
|
|
</refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>void</type><methodname>passthru</methodname>
|
|
<methodparam><type>string</type><parameter>command</parameter></methodparam>
|
|
<methodparam choice="opt"><type>int</type><parameter>&return_var</parameter></methodparam>
|
|
</methodsynopsis>
|
|
<para>
|
|
The <function>passthru</function> function is similar to the
|
|
<function>exec</function> function in that it executes a
|
|
<parameter>command</parameter>. If the
|
|
<parameter>return_var</parameter> argument is present, the return
|
|
status of the Unix command will be placed here. This function
|
|
should be used in place of <function>exec</function> or
|
|
<function>system</function> when the output from the Unix command
|
|
is binary data which needs to be passed directly back to the
|
|
browser. A common use for this is to execute something like the
|
|
pbmplus utilities that can output an image stream directly. By
|
|
setting the Content-type to <emphasis>image/gif</emphasis> and
|
|
then calling a pbmplus program to output a gif, you can create
|
|
PHP scripts that output images directly.
|
|
</para>
|
|
&warn.escapeshell;
|
|
¬e.exec-bg;
|
|
¬e.exec-path;
|
|
&warn.sm.exec;
|
|
<para>
|
|
See also <function>exec</function>, <function>system</function>,
|
|
<function>popen</function>, <function>escapeshellcmd</function>,
|
|
and the <link linkend="language.operators.execution">backtick
|
|
operator</link>.
|
|
</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
|
|
-->
|