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本扩展实现了 » JavaScript对象符号(JSON) 数据转换格式. 解码分析器基于 Douglas Crockford 的 JSON_checker。
Note:
PHP implements a superset of JSON as specified in the original » RFC 4627 - it will also encode and decode scalar types and
NULL
. RFC 4627 only supports these values when they are nested inside an array or an object.Although this superset is consistent with the expanded definition of "JSON text" in the newer » RFC 7159 (which aims to supersede RFC 4627) and » ECMA-404, this may cause interoperability issues with older JSON parsers that adhere strictly to RFC 4627 when encoding a single scalar value.