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LuaSandbox::setCPULimit	LuaSandbox::unpauseUsageTimer

LuaSandbox	Last updated: Mon, 26 Oct 2026

LuaSandbox::setMemoryLimit

(PECL luasandbox >= 1.0.0)

LuaSandbox::setMemoryLimit — Set the memory limit for the Lua environment

Description

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

Sets the memory limit for the Lua environment.

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

Parameters

limit: Memory limit in bytes.

Return Values

No value is returned.

Examples

Example #1 Calling a Lua function

<?php

// 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

See Also

LuaSandbox::getMemoryUsage() - Fetch the current memory usage of the Lua environment
LuaSandbox::getPeakMemoryUsage() - Fetch the peak memory usage of the Lua environment
LuaSandbox::setCPULimit() - Set the CPU time limit for the Lua environment

LuaSandbox::setCPULimit	LuaSandbox::unpauseUsageTimer

LuaSandbox	Last updated: Mon, 26 Oct 2026