<?php

$array = array('cat', 'hat', 'sat');
$iterator = new ArrayIterator($array);

# Simple regex
$regexIterator = new RegexIterator($iterator, '/.at/');
var_dump($regexIterator->getRegex());

# Empty regular expression
$regexIterator = new RegexIterator($iterator, '//');
var_dump($regexIterator->getRegex());

# "Complex" email regular expression
$regexIterator = new RegexIterator($iterator, '|\b[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b|');
var_dump($regexIterator->getRegex());



?>
