CascadiaPHP 2024


(PECL luasandbox >= 1.0.0)

LuaSandbox::setMemoryLimitSet the memory limit for the Lua environment


public LuaSandbox::setMemoryLimit(int $limit): void

Sets the memory limit for the Lua environment.

If this limit is exceeded, a LuaSandboxMemoryError exception is thrown.



Memory limit in bytes.

Return Values

No value is returned.


Example #1 Calling a Lua function


// create a new LuaSandbox
$sandbox = new LuaSandbox();

// set a memory limit
$sandbox->setMemoryLimit( 50 * 1024 * 1024 );

// Run Lua code
$sandbox->loadString( 'local x = "x"; while true do x = x .. x; end' )->call();


The above example will output something similar to:

PHP Fatal error:  Uncaught LuaSandboxMemoryError: not enough memory

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