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If the JSON failed to be decoded or the JSON is deeper than given depth then null gets returned. Here, we go for the associative array option. The second parameter of jsondecode specifies if we want to get each JSON object as an associative array or as an object. When true, false, or null is passed for JSON, the function returns same true, false, or null respectively. Be wary that associative arrays in PHP can be a 'list' or 'object' when converted to/from JSON, depending on the keys (of absence of them). When true, false, or null is passed for JSON, the function returns same true, false, or null respectively. Convert a JSON String to an Associative Array Using jsondecode We use jsondecode to convert (decode) the string to a PHP associative array. Return: The jsondecode () function decodes the JSON string to appropriate PHP type based on the parameter. JSON can be decoded to PHP arrays by using the associative true option. The json_decode() function decodes the JSON string to appropriate PHP type based on the parameter. flags: It includes bitmask of JSON_OBJECT_AS_ARRAY, JSON_BIGINT_AS_STRING, JSON_THROW_ON_ERROR and other JSON constants.depth: Maximum nesting depth of the JSON to be decoded.When true is passed, JSON object will be converted into associative array when false is passed, JSON object will be returned as stdClass object when NULL is passed, it will return associative array or object depending on the JSON_OBJECT_AS_ARRAY flag. This function only works with UTF-8 encoded strings. json: The JSON string passed to be decoded to php variable.
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Json_decode ( string $json, ? bool $associative = null, int $depth = 512, int $flags = 0 ) : mixed