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run code in 150+ php & hhvm versions
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<?php function splitStreetNameNumber($str) { $str = trim($str); $tmp = @preg_split('/[0-9]+/', $str); if (0 >= strlen($str) || 0 >= strlen(trim($tmp[0]))) { return false; } return array( 'name' => trim($tmp[0]), 'num' => trim(str_replace(trim($tmp[0]), '', $str)), ); } $a = array( 'Karlstr. 2', '12345', 'Karl Straße 2d', 'Karlsplatz 14 a', '', 'Karlsplatz', ); foreach($a as $b) { $c = splitStreetNameNumber($b); if (!$c) { echo "Not a valid address.\r\n"; } else { printf("Streetname: %s, Streetnumber: %s.\r\n", $c['name'], $c['num']); } }
Output for 4.3.0 - 5.6.26, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
Streetname: Karlstr., Streetnumber: 2. Not a valid address. Streetname: Karl Straße, Streetnumber: 2d. Streetname: Karlsplatz, Streetnumber: 14 a. Not a valid address. Streetname: Karlsplatz, Streetnumber: .