php将字符串1 | * | 3 | * | 150转换为另一种格式[“1”，“3”，“150”]

Question

I have a php code to read multiselect values from database. the value maybe a single string like 1 or 2 or ... etc . or maybe a multi as 1|*|3|*|150 . I want a php code to check value if single , so it remain single. but if multi as 1|*|3|*|150 so it convert to ["1","3","150"] How can I do that / thank you

Answer 1

It's just explode. explode can use a delimiter consisting of multiple characters.

Your string looks fancier than just comma-separated values, but the delimiter appears to be consistent, so

$array = explode('|*|', $string);

should work just fine.

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It seems I misunderstood the question initially, and you don't want an array as the result, you want a sort of string representation of an array. In that case, you can just str_replace the delimiter instead of using explode.

$string = '["' . str_replace('|*|', '","', $string) . '"]';

Some unsolicited advice, for you or anyone else who reads this later: In general this is not how I would recommend storing multiple associated values in a database. See this great answer for some compelling reasons not to do this:

Is storing a delimited list in a database column really that bad? (Spoiler alert: Yes.)