如题:
$str = '2101;2102、2103; 2105;2106-2108.2111。2112';
echo preg_replace('/\D/x',',',$str);
输出结果:
2101,2102,,,2103,,,,2105,2106,2108,2111,,,2112
$str = '2101;2102、2103; 2105;2106-2108.2111。2112';
echo preg_replace('/\D/x',',',$str);
输出结果:
2101,2102,,,2103,,,,2105,2106,2108,2111,,,2112
$pattern = '/(\d+?\d+)/';
if(preg_match_all($pattern, $str, $match)){
$str=implode(',',$match[0]);
echo $str;
}这样应该可以的