<?php
    $str = "International Scrabble Assocation";
    preg_match_all('/\b(\w)\w*\b/i', $str, $matches);
    $regex = '/\b' . implode('\S*\s*', array_map(strtoupper, $matches[1])) . '\S*\b/';
    $tests = array('Intl. Scrabble Assoc.',
                   'Intl Scrabble Assoc',
                   'I.S.A',
                   'ISA',
                   'Intl. SA', 
                   'intl scrabble assoc',
                   'i.s.a.',
                   'isa',
                   'lisa',
                   'LISA',
                   'LI. S. A.');
    echo "The generated regex is $regex.\n\n";
    foreach ($tests as $test)
    {
        echo "Does '$test' match? " . (preg_match($regex, $test) ? 'Yes' : 'No') . ".\n";
    }
?>

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