Lua::registerCallback

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Lua::registerCallback — Register a PHP function to Lua

Description

public Lua::registerCallback(string $name, callable $function): mixed

Parameters

name
function: A valid PHP function callback

Return Values

Returns $this, null for wrong arguments or false on other failure.

Examples

Example #1 Lua::registerCallback()example

<?php
$lua = new Lua();
$lua->registerCallback("echo", "var_dump");
$lua->eval(<<<CODE
    echo({1, 2, 3});
CODE
);
?>

The above example will output:

array(3) {
  [1]=>
  float(1)
  [2]=>
  float(2)
  [3]=>
  float(3)
}

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User Contributed Notes 1 note

down

turn_and_turn at sina dot com ¶

4 years ago

// init lua
$lua = new Lua();

/**
* Hello world method
*/
function helloWorld()
{
    return "hello world";
}

// register our hello world method
$lua->registerCallback("helloWorld", helloWorld);
$lua->eval("
    -- call php method
    local retVal = helloWorld()

    print(retVal)
");

// register our hello world method but using an other name
$lua->registerCallback("worldHello", helloWorld);

// run our lua script
$lua->eval("
    -- call php method
    local retVal = worldHello()

    print(retVal)
");

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