VerbalExpressions/PHPVerbalExpressions

$ composer require  verbalexpressions/php-verbal-expressions:dev-master

<?php
// some tests
require './vendor/autoload.php';
use VerbalExpressions\PHPVerbalExpressions\VerbalExpressions;

$regex = new VerbalExpressions();

$regex->startOfLine()
      ->then("http")
      ->maybe("s")
      ->then("://")
      ->maybe("www.")
      ->anythingBut(" ")
      ->endOfLine();


if ($regex->test("http://github.com")) {
    echo "valid url". '<br>';
} else {
    echo "invalid url". '<br>';
}

if (preg_match($regex, 'http://github.com')) {
    echo 'valid url';
} else {
    echo 'invalid url';
}


echo "<pre>". $regex->getRegex() ."</pre>";

echo $regex->clean(array("modifiers" => "m", "replaceLimit" => 4))
           ->find(' ')
           ->replace("This is a small test http://somesite.com and some more text.", "-");

$definition = 'start, then "http", maybe "s", then "://", maybe "www.", anything but " ", end';
$regex = new VerbalExpressionsScenario($definition);

curl -sS https://getcomposer.org/installer | php
php composer.phar install --dev
ln -s vendor/phpunit/phpunit/phpunit.php phpunit
./phpunit