Pavel, http://yandex.ru/search/?text=php%20%D0%B3%D0%BB%D0%B0%D0%B7%D0%B0%D0%BC%D0%B8%20%D1%85%D0%B0%D0%BA%D0%B5%D1%80%D0%B0%20pdf%20%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C
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и вот еще одна по серьезней
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http://yandex.ru/search/?text=%D0%BC%D1%8D%D1%82%D1%82%20%D0%B7%D0%B0%D0%BD%D0%B4%D1%81%D1%82%D1%80%D0%B0%20php%20%D0%BE%D0%B1%D1%8A%D0%B5%D0%BA%D1%82%D1%8B%20%D1%88%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD%D1%8B%20%D0%B8%20%D0%BC%D0%B5%D1%82%D0%BE%D0%B4%D0%B8%D0%BA%D0%B8%20%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F%20%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C%20pdf