模式\d+-?\d+-?\d+-?\d+意味着应该至少有4个数字，因为所有连字符都是可选的，但是在示例数据中，带有数字的部分至少有一个连字符，并且由2、3或4个部分组成。
您可以将数字和连字符部分重复1次或更多次，并且不使用.*\b，而是使用\S*\b来匹配可选的非空格字符，这些字符将回溯到最后一个单词边界。
请注意，如果您在php中使用/以外的分隔符，则不必转义\/
使用不区分大小写的匹配：

\b(?:\d+(?:-\d+)+|bkk\S*|\d+\/\d+)\b

• • 说明**
• \b防止部分字匹配的字边界
• (?:备选项的非捕获组
• \d+(?:-\d+)+匹配1+位数，重复匹配- 1次或多次，然后再次匹配1+位数（或使用{1,3}代替+）
• |或
• bkk\S*匹配bkk和可选的非空白字符
• |或
• \d+\/\d+匹配1+位数/和1+位数
• )关闭非捕获组
• \b字边界

参见regex101 demo。

用途

\d+(?:\d+(?:-?\d+){3}|\/\d+)|\b[bB][kK][kK][A-Za-z0-9-]*

参见regex proof。

REEX101解释

1st Alternative \d+(?:\d+(?:-?\d+){3}|\/\d+)
\d matches a digit (equivalent to [0-9])
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
Non-capturing group (?:\d+(?:-?\d+){3}|\/\d+)
1st Alternative \d+(?:-?\d+){3}
\d matches a digit (equivalent to [0-9])
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
Non-capturing group (?:-?\d+){3}
{3} matches the previous token exactly 3 times
- matches the character - with index 4510 (2D16 or 558) literally (case sensitive)
? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)
\d matches a digit (equivalent to [0-9])
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
2nd Alternative \/\d+
\/ matches the character / with index 4710 (2F16 or 578) literally (case sensitive)
\d matches a digit (equivalent to [0-9])
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
2nd Alternative \b[bB][kK][kK][A-Za-z0-9-]*
\b assert position at a word boundary: (^\w|\w$|\W\w|\w\W)
Match a single character present in the list below [bB]
bB matches a single character in the list bB (case sensitive)
Match a single character present in the list below [kK]
kK matches a single character in the list kK (case sensitive)
Match a single character present in the list below [kK]
kK matches a single character in the list kK (case sensitive)
Match a single character present in the list below [A-Za-z0-9-]
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
A-Z matches a single character in the range between A (index 65) and Z (index 90) (case sensitive)
a-z matches a single character in the range between a (index 97) and z (index 122) (case sensitive)
0-9 matches a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
- matches the character - with index 4510 (2D16 or 558) literally (case sensitive)