php json get comments

How do I get the comments in a json string using php?

I have a php script that decodes data in a json string, but there is an additional small piece of metadata included as a comment in the first line of the string. I could split the string and get the first line, 开发者_JS百科and parse that with regex, but I'd rather use a native json function for getting the comments if it exists.

Anybody knows something like this?

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The JSON specification does not allow for comments. If your data includes comments, then it is not JSON and a JSON parser should be expected to error on encountering them.

It sounds like you will have to preprocess your non-JSON data to split it into a JSON part and a comment part, then process the JSON part normally and the comment part with some custom code.

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The JSON spec does not define comments, which means that your JSON string is not JSON. PHP thus has no native way to extract comments from json strings.