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<?php function splitStreetNameNumber($str) { $str = trim($str); if (0 >= strlen($str)) { return false; } $t = preg_split('/[0-9]+/', $str); $num = str_replace($t[0], '', $str); return array( 'name' => trim($t[0]), 'num' => trim($num), ); } $a = array( 'Karlstr. 2', 'Karl Straße 2d', 'Karlsplatz 14 a', 'Karlsplatz', ); foreach($a as $b) { $c = splitStreetNameNumber($b); print_r($c); }

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