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php Programming Glossary: matchsetValidating US phone number with php/regex http://stackoverflow.com/questions/3357675/validating-us-phone-number-with-php-regex the format analyzer if preg_match format_pattern phone matchset valid 'format' true If formatted properly continue if valid.. 'format' Set array of new components components array 'ac' matchset 1 area code 'xc' matchset 2 exchange code 'sn' matchset 3 subscriber.. components components array 'ac' matchset 1 area code 'xc' matchset 2 exchange code 'sn' matchset 3 subscriber number 'xn' matchset..
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