<?php show_source(end(explode('/',$_SERVER['PHP_SELF']))); echo "<hr>"; ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8" />
    <title>Create an Array of Matches Using Regular Expressions</title>
</head>
<body>
<?php
    $matches = array();

    $pattern = "/o[aeiou]/";

    $target = 'Toby Joe Boudreaux';

    preg_match_all($pattern, $target, $matches, PREG_OFFSET_CAPTURE);

    print_r($matches);
?>
</body>
</html>

Create an Array of Matches Using Regular Expressions Array ( [0] => Array ( [0] => Array ( [0] => oe [1] => 6 ) [1] => Array ( [0] => ou [1] => 10 ) ) )