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#!/usr/bin/env php <?php function check_phone($s) { $n = str_replace( ['-', ' '], '', $s); //spaces and '-' can be put in so many ways, that it's better to ignore //them, rather than wonder about every possible (and valid) combination //note ugly two-element array here if ( preg_match( '/^\\(?\\+?[0-9]{2,3}\\)?[0-9]{7}([0-9]{2})?$/', $n ) == 1 ) { //country/area code (which is optional) can be given in brackets () and prefixed with + //follwed by 7 digits (landline), plus 2 optional (mobile) echo("VALID $s [ aka $n ]\n"); return 1; } else { echo("INVALID $s [ aka $n ]\n"); return 0; } } $phone_array = array( '123456789', '(12)9009090', '900-900-900', '+12 900 29 29', 'i900900900', '900 0-00 290', '+900123123', '0+00 900 900', '(+90) 900 200 300', '+490 900 100 200'); foreach ($phone_array as $phone) { check_phone($phone); } ?>
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