&reftitle.examples;

Once you've compiled PHP with LuaSandbox support, you can begin using LuaSandbox to safely run user-provided Lua code. setMemoryLimit( 50 * 1024 * 1024 ); $sandbox->setCPULimit( 10 ); // Register some functions in the Lua environment function frobnosticate( $v ) { return [ $v + 42 ]; } $sandbox->registerLibrary( 'php', [ 'frobnosticate' => 'frobnosticate', 'output' => function ( $string ) { echo "$string\n"; }, 'error' => function () { throw new LuaSandboxRuntimeError( "Something is wrong" ); } ] ); // Execute some Lua code, including callbacks into PHP and into Lua $luaCode = <<loadString( $luaCode )->call(); assert( $frob->call( 4000 ) === [ 4242 ] ); // PHP-thrown LuaSandboxRuntimeError exceptions can be caught inside Lua list( $ok, $message ) = $sandbox->loadString( 'return pcall( php.error )' )->call(); assert( !$ok ); assert( $message === 'Something is wrong' ); ?> ]]>