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php-pecl-runkit - Mangle with user defined functions and classes…  more info»


Runkit extension for PHP

For all those things you.... probably shouldn't have been doing anyway....

Runkit has three groups of features outlined below:

A new .ini entry `runkit.superglobal` is defined which may be specified as a simple variable, or list of simple variables to be registered as 
superglobals.  runkit.superglobal is defined as PHP_INI_SYSTEM and must be set in the system-wide php.ini.



function testme() {
  echo "Foo is $foo\n";
  echo "Bar is $bar\n";
  echo "Baz is $baz\n";
$foo = 1;
$bar = 2;
$baz = 3;


Foo is 1
Bar is 2
Baz is

Compatability: PHP 4.2 or greater

Userdefined functions and userdefined methods may now be renamed, delete, and redefined using the API described at

Examples for these functions may also be found in the tests folder.

Compatability: PHP4 and PHP5

With the introduction of TSRM based subinterpreter support a running PHP script may now generate a new thread and interactively switch contexts back and 
forth between it.  THIS FEATURE DOES NOT PROVIDE FULL SCRIPT THREADING.  This feature only allows you to run processes in a subinterpreter optionally 
with additional security.

First, create an instance of the Runkit_Sandbox object:

$php = new Runkit_Sandbox();

To read and write variables in this subinterpreter, just access the properties of the object:

$php->foo = 'bar';
$php->baz = 'boom';

Individual functions may also be called (executed within the newly created scope):


Or you can execute a block of arbitrary code:

$php->eval('echo "The value of foo is $foo\n";');

In this example, $foo will be interpolated as 'bar' since that's what you set it to earlier.

Certain INI Options which are ordinarily only modifiable in the system php.ini may be passed during instantiation and changed for your subinterpreter as 
well, these options are passed as an associative array to the Runkit_Sandbox constructor and include the following:

safe_mode			safe_mode may only be turned on for a Runkit_Sandbox interpreter using this option.  It cannot be turned off, doing so would 
					circumvent the setting specified by your system administrator in the system php.ini.

open_basedir		Like safe_mode, you can only use this setting to make things more restrictive.

allow_url_fopen		In keeping with safe_mode, this can only be turned off (more restrictive than global environment)

disable_functions	Any function names specified in this coma-delimited list will be disabled IN ADDITION TO already disabled functions.

disable_classes		Like disable_functions, this list is in addition to already disabled classes.

Sandboxing is ONLY AVAILABLE in PHP 5.1 (release version, or snapshot dated after April 28th, 2005) when thread safety has been enabled.  To enable 
thread safety, just make sure that --enable-maintainer-zts is specified on your ./configure line.  This doesn't necessarily mean that your SAPI will use 
PHP in a threaded manner, just that PHP is prepared to behave that way.  If you're building for Apache2-Worker then you're already built for thread 

If you wish/need to use PHP 5.0.x, or a cvs snapshot of 5.1 which predates April 28th, you can apply the tsrm_5.0.diff patch included in this package:

cd /path/to/php-5.0.x/
cat /path/to/runkit/tsrm_5.0.diff | patch -p0

Then just rebuild using the --enable-maintainer-zts option specified above.

runkit_lint() and runkit_lint_file() also exist as a simpler approach to verifying the syntactic legality of passed code within an isolated environment.
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