php-closure.php

<?php

$var1 = 10;
$var2 = 3;

$closureWithArgsAndVars = function ($arg1, $arg2) use ($var1, $var2) {
   echo $var1;
};

$closureWithArgsAndVars(8, 9);

echo "<br><br>";

$param  = 'John!';

function sayHello()
{
	$param = 'Michael!';
	$func  = function() use ($param)
	{
        $param = 'Dave!';
	};
	
	$func();
	echo 'I am ' . $param; // prints I am Michael!
}

sayHello();