Php字符串根据与字符串条件匹配的字符来爆炸字符串

I have strings like this:

我有这样的字符串:

$string1 = '35 Hose & Couplings/350902 GARDEN HOSE COUPLING, PVC, 16\/19 MM"';

$string2 = '35 Hose & Couplings/350904 GARDEN HOSE TAP CONNECTOR, PVC, 3\/4" FEMALE THREAD"';
$string