Funcoes anonimas

<?php
//funcao anonima
$soma = function($val1, $val2){
    return $val1 + $val2;
};
//echo $soma(12, 12);

function execMulti($qtd, $closure)
{
    for ($i=1;$i<=$qtd;$i++){
        $closure();
        echo "<br>";
    }
}

$imprime = function(){
    echo "TreinaWeb";
};

execMulti(3,$imprime);
echo "<br>";
execMulti(3, function(){
    echo "Outra Operaçao";
})
?>